Asme Section Ix 5e143a
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An introduction to ASME S & ASME S SEC S C IX QA/QC DEPARTMENT
Contents The ASME System Introduction to Section IX Organization O i ti and d Use U Section S ti IX Section IX Responsibilities Responsibilities of the Authorized Inspector or Owner Inspector
Responsibilities p of the Manufacturer Welding Processes and weld types Section II, Part C Welding Materials Welding Procedure Specification QW-200 Procedure Qualification Record (PQR) Qualifying a WPS Miscellaneous Application Welding Variables Welder performance Qualification QW-300 Welder Essential Variables SMAW
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Th ASME System The S t
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Outline The ASME System ASME Boiler B il & P Pressure V Vessell C Codes d Section IX Subcommittee Organization
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The ASME The American Society of Mechanical Engineers Provides minimum safety rules for Construction
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The
The American Society of Mechanical Engineers (ASME) Manufacturer/Certificates Holders Owners/s Authorized Inspection Agencies Jurisdiction/Regulatory Agencies voluntarily ed by their organizations
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Manufacturers
Owner/s
AIAs
ASME Voluntary
Jurisdictions
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Boiler & Pressure Vessel Committee 1911: ASME establishes a committee for the purpose of formulating standard rules for the construction of power boilers and other pressure vessels.
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Construction Codes Section I – Power Boilers Section III – Divs. 1 & 2 – Nuclear Components Section IV – Heating Boilers Section VIII,, Divs. 1,, 2 & 3 Pressure Vessels Section X – Fiberglass Reinforced Plastic Pressure Vessels
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History of Construction Codes 1914: Section I – Power Boilers 1923: Section IV – Heating Boilers 1928: Section VIII – Unrefined Pressure Vessels 1965: Section III- Nuclear Power Plant Components. p
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History of Construction Codes 1968: Renamed Section VIII, Div. 1 Pressure Vessel Code 1968: Section VIII, Div. 2 Alternate Rules for Pressure Vessels 1969: Section X – Fiberglass Reinforced Plastic Pressure Vessels
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Reference Codes Section II – Materials Section V - Nondestructive Examination Section IX - Welding & Brazing Qualification
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History of Reference Codes 1924: Section II - Material 1937: Section IX – Welding Qualification
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Subgroup Organization Section IX Committee
Subgroup Performance
Subgroup Procedures
Subgroup General Requirements
Subgroup Brazing
Subgroup Materials
Subgroup Strength off Weldment
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Introduction to Section IX
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Outline Foreword WPS/PQR Qualifications Q lifi ti Addenda Organization g and Use of Section IX
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Foreword Foreword covers topics such as: History Hi t off ASME C Committee itt Submitting interpretations to ASME as referenced in Appendix A Effect date of Addenda Addenda may be used upon issuance although it is not mandatory six month after issue Material requiremen
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ASME Code Section IX
Qualification Standard for Welding and Brazing Procedures Welders, Braziers, Welding and Brazing Operators.
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WPS/PQR Qualification Article I Paragraph QW-100.2 discusses “OLD” procedures d and dW Welders ld Q Qualifications lifi ti Qualification prior to 1962: Requires updating to a later edition or discard as valid After 1962, the Procedures and Welders are good forever
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Addenda Changes to the Code Issued annually Mandatory use six months after issue May be used upon issue
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Reference Code Section IX is a reference Code and may be used only when referenced and as it is referenced by the Construction or Governing Code
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O Organization i ti and d Use U Section S ti IX
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Organization
Part QW Article 1 – General Requirements Article 11 – Welding Procedure Qualification Article 111 – Welding Performance Qualification Article IV – Welding g Variables Article V – Standard Welding Procedure (AWS)
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Article I
General Requirements QW-100 General QW-110 Weld Ordination QW QW-120 120 Test Position for Groove welds QW-130 Test Position for Fillet Welds QW-140 Types and purpose of test and examinations
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Article I
General Requirements QW-150 Tension Test QW-160 Guided bend test QW QW-170 170 Notch Toughness Test QW-180 Fillet Weld Test QW-190 Other test & examinations
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Article II
Welding Procedure Qualification QW-200 General QW-210 Preparation of test coupon QW QW-250 250 Welding Variables
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Article III
Welding Performance Qualification QW-300 QW 300 G Generall QW-310 Qualification test coupon QW-320 Reset and renewal of qualification q QW-350 Welding variables for welders QW-360 Welding variable for welding Operators QW-380 Special processes
Article IV
Welding Data QW-400 Variables QW-410 Techniques QW-320 P-Number QW-430 F- Numbers QW-440 Weld metal chemical composition QW-450 QW 450 Specimens QW-460 Graphics QW-470 Etching process and reagents QW-490 QW 490 D Definitions fi i i
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Section IX Responsibilities
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Outline
Responsibilities Authorized Inspector Manufacturer
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Responsibilities of the Authorized Inspector or Owner Inspector
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Before Construction
that Procedure comply with procedure Procedure have been properly qualified Welding and Operators are properly qualified QC Manual has been followed
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During Construction Make sure welding is preformed within the parameters of the welding procedure welder qualification limits are neither exceeded nor expired i d
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Responsibilities of the Manufacturer
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Qualification of Procedure Establish a QC program to control qualification List Li t parameters t for f construction t ti Prepare a written WPS Assure metallurgical compatibility between filler and base metal Prepare and certify PQR based upon recorded data
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Notes Recommended that each Manufacturer has, or has access to, a welding metallurgist QW-200.3 Hold the manufacturer responsible for assuring that material are compatible when welded
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Qualification of Welders Establish QC program to control welder qualification Qualify each welder to the process being used Weld the test coupon in accordance with a written WPS
Cont’d…
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Qualification of Welder Control and supervise during the welding of coupon Maintain welder identification Document welder qualification
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Subcontracted Welding Procedures Applicable to Section I only when using “PP” stamp to ASME/ ANSI B31 B31.1 1C Code d The National Certified Pipe Welder’s Bureau (NWB), a national organization made up of member companies, provides welding procedures to its .
Cont’d…
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Subcontracted Welding Procedures
The member company must Sign each WPS and PQR Accept responsibility for its use and Code compliance
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Subcontracted Welding
Allowed by the construction Code, provided; Use U iis d described ib d iin th the QC M Manuall Work performed within the scope of the Certificate of Authorization Certificate holder has contractual control over the Welders.
Cont’d…
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Subcontracted Welding Certificate Holder has final responsibility for the welding Welder W ld iis under d subcontract b t t tto th the C Certificate tifi t holder h ld Welder are qualified by the Certificate Holder
Inter – Company Procedures QW-201
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Welding procedure may be used among different companies, provided they are within the same corporate structure Each company must state how they control such procedure in their QC Manual and satisfy the ASME during t review
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Example Company “A” qualifies and files several PQRs Company C “B” fil files th their i own PQR and d combines bi with ith th the PQRs from company “A” to develop a WPS The PQR from company “A” was not qualified. Is this permissible?
Inter – Company Procedures QW-300.2
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Allows to use the Welders amongst different companies without prequalification, provided both companies are within the same corporate structure Each company must satisfy the ASME requirements during the t review and incorporate the necessary control in the QC Manual
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Welding Processes and Weld Types
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Outline Welding Processes Weld W ld T Types
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Welding Processes OFW
Oxyfuel Welding
SMAW
Shield Metal Arc Welding g
SAW
Submerge Arc Welding
GMAW
Gas Metal Arc Welding
FCAW
Flux-Core Arc Welding
GTAW
Gas Tungsten Arc Welding
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Welding Processes PAW
Plasma Arc Welding
ESW
Electro Slag g Welding g
EGW
Electro Gas Welding
EBW
Electro Beam Welding
LBW
Laser Beam Welding
Stud Welding Inertia and Continuous Friction
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Special Processes Corrosion resistance overlay and hard surface overlay welding ldi Qualification requirement: QW-453 Essential variables: QW-250
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Weld Types Three types of welds covered in Section IX Groove G Weld W ld U Groove J Groove V Groove Partial Penetration Fillet Welds Stud Welds
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‘J’ and ‘U’ Preparations
“U” preparation Root radius Land
Double “U” butt
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Groove Weld 1
?
Cont’d……
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Groove Weld
1
Groove Angle
Cont’d……
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Groove Weld 1
? 2
Cont’d……
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Groove Weld
1
2
Bevel Angle
Cont’d……
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Groove Weld ? 3 1
2
Cont’d……
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Groove Weld 3 1
2
Groove Face
Cont’d……
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Groove Weld 3 1
2
? 4
Cont’d……
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Groove Weld 3 1
2
Root Face
4
Cont’d……
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Groove Weld 3 1
2
4 5 ?
Cont’d……
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Groove Weld 3 1
2
Root Gap 4 5
Cont’d……
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Groove Weld Groove Face Groove Angle Bevel Angle
Root Face Root Gap
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Fillet Weld
1
?
Cont’d……
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Fillet Weld
1
?
Toe of Weld
Cont’d……
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Fillet Weld
2
1 ?
Cont’d……
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Fillet Weld
2
1
Weld Face
Cont’d……
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Fillet Weld
2
1
? 3
Cont’d……
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Fillet Weld
2
1
3
Weld Size
Cont’d……
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Fillet Weld
2 4
1
3
?
Cont’d……
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Fillet Weld
2 4
1
3
Weld Leg
Cont’d……
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Fillet Weld
2
1
3
4
5 ?
Cont’d……
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Fillet Weld
2
1
3
4
5 Weld Root
Cont’d……
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Fillet Weld
1
2
3
4
5
6 ?
Cont’d……
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Fillet Weld
1
2
3
4
5
6 Weld Throat
Cont’d……
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Fillet Weld
Toe Face Leg
Root
Weld Size
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Stud Welding
1
?
Cont’d……
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Stud Welding
Work Piece 1
Cont’d……
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Stud Welding
? Work Piece
2
1
Cont’d……
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Stud Welding
Stud Work Piece
2
1
Cont’d……
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Stud Welding
Stud Work Piece 1
2 3 ?
Cont’d……
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Stud Welding
Stud Work Piece 1
2 3
Weld
Cont’d……
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Section II, II Part C Welding Material
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Outline
Scope of Section II, Part C
Electrode Identification
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ASME Section II, Part C
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Scope Section II- material specifications referenced in the f b i ti C fabrication Code. d Part C – Material Specification for welding materials
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Section II, Part C
Information includes: Processes P th t may be that b used d with ith various i electrodes l t d Recommended storage requirements AWS marking Recommended electrode positions Recommended polarity Information on “how” how to meet SFA specification
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Table of Contents SFA-5.1 Carbon Steel covered arc welding electrodes. SFA-5.4 SFA 5 4 Corrosion C i resistance i t Cr C and dC Cr-Ni Ni steel t l covered d electrodes SFA- 5.5 Low alloy steel-covered arc welding electrodes SFA-2.18 Carbon steel filler metals for Gas Shielded Arc Welding
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Specification SFA-5.1 Requirements for classifying carbon steel electrodes used d ffor Shielded Shi ld d M Metal t lA Arc W Welding ldi (SMAW) Example: E6010, E6011, E7018 and E7028
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Specification SFA-5.4 Requirement for classifying stainless steel-covered electrodes l t d used d ffor SMAW Example: E308H, E309L, E317L and E317L
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Specification SFA-5.5 Requirements for classifying low alloy steel-covered electrodes l t d used d ffor SMAW Example: E7018-A1, E8016-B2, E9015-B3 and E9018-B3L
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Specification SFA-5.18 Requirements for classifying carbon steel electrodes and rods used for Gas Shielded Arc Welding (GSAW) Examples: ER70S2, ER70S3, ER70SG and ER70CGM.
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Electrode Identification
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Marking Requirements SFA-5.1 requires marking on both the package and electrode l t d Package • AWS classification and class • Supplier’s name and trade designation • Size and net weight • Lot, Lot control or heat number Electrode • Classification must be within 2.5” of grip end • Prefix P fi “E” may be b omitted itt d
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Classification SFA-5.1
Electrode
P iti Position
EXXXX- 1
For 018 Electrodes, “1” indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength (ksi) Type off coating T ti and d recommended current
Cont’d……
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Classification SFA-5.1
Electrode
Position
EXXYY- 1
For 016 E7016 & E7018 Electrodes, “1” 1 indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength 70 ksi Type of coating and recommended current
Cont’d……
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Classification SFA-5.1
Electrode
Position
EXXYY-1
For E7016 & E7018 Electrodes, “1” indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength 70 ksi Type off coating T ti and d recommended current
Cont’d……
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Classification SFA-5.1
Electrode
All P Position iti
EXX18- 1
For E7016 & E7018 Electrodes, “1” indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength 70 ksi Low Hydrogen, L H d Potassium, P t i Iron powder and use for AC or DCEP Cont’d……
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Classification SFA-5.1
Electrode
Position
EXXYY-1
For E7016 & E7018 Electrodes, “1” indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength 70 ksi Type off coating T ti and d recommended current
Cont’d……
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Example of SFA-5.1 Electrode E6010, E7018, E7024 Note: N t O Only l 60 kksii and d 70 kksii ttensile il electrode l t d are covered d by this specification
Cont’d……
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Specification SFA-5.4 Requirements for classifying corrosion-resistant and chromium h i nickel i k l steel-covered t l d arc welding ldi electrodes l t d used for SMAW
Cont’d……
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Classification SFA-5.4
Electrode
Usability (Position & Current type
E-XXX-XXX-XX Chemical Composition (first three digits)
One or more letters indicating modification of basic composition
Cont’d……
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Classification SFA-5.4 Usability y ((Position & Current type Electrode
E-XXX-YYY-XX Chemical Composition (first three digits)
One or more letters indicating modification of basic composition
Cont’d……
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Classification SFA-5.4 Usability (Position & Current type
Electrode
E-308-YYY-XX 19 Cr, Cr 10 Ni One or more letters indicating modification of basic composition
Cont’d……
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Classification SFA-5.4 Usability (Position & Current type
Electrode
E-XXX-L-XX Chemical Composition (first three digits) Low carbon contents 0.04% 0 04% max
Cont’d……
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Classification SFA-5.4 Electrode
DCEP or AC/ all position
E-XXX-YYY-16 Chemical Composition (first three digits)
One or more letters g modification of indicating basic composition
Cont’d……
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Example of SFA-5.4 E308L, E308L-16, E309Cb L Legend d L
Low Carbon
Cb
Addition of columbium, Reduction of Carbon
Mo
Addition of molybdenum, reduction of carbon
15
Lime covering, use DCEP
16
Lime or titania, titania use with DCEN or DCEP
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Specification SFA-5.5 Requirements for classifying low-alloy steel electrode used d ffor SMAW
Cont’d……
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Classification SFA-5.5
Position Electrode
One or more letters & number indicating chemical h i l composition iti off deposited metal
EXX (X) XX-XXX Minimum tensile strength ( ) (ksi) Type of coating & recommended current Cont’d……
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Classification SFA-5.5
Position Electrode
One or more letters & number indicating chemical composition of deposited metal
EXX (X) YY-XXX Minimum tensile strength (ksi) Type of coating & recommended current Cont’d……
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Classification SFA-5.5
Position Electrode
One or more letters & number indicating g chemical composition of deposited metal
E 100 XX-XXX Minimum tensile strength 100 ksi Type of coating & recommended current Cont’d……
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Specification SFA-5.5
All Position Electrode
One or more letters & number indicating g chemical composition of deposited metal
EXX (X) 16-XXX Minimum tensile strength (ksi) Low hydrogen Potassium AC/DCEP Cont’d……
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Classification SFA-5.5
All Position Electrode
One or more letters & number indicating chemical composition of deposited metal
EXX (X) 16-B2L Minimum tensile strength (ksi) Low hydrogen Potassium AC/DCEP Cont’d……
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Classification SFA-5.5 Position Electrode
Chromium- molybdenum steel electrode
EXX (X) ( ) YY-B2L 2 Minimum tensile strength (ksi) Type of coating & recommended current
Cont’d……
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Example of SFA-5.5 E7012, E7013-B3“A” Chemical C C Composition Number A1- C Mo (1/2 % Mo) B1 B1- Cr Mo (1/2%Cr (1/2%Cr,1/2%Mo) 1/2%Mo) B2- Cr Mo (1-1/4%Cr, 1/2%Mo) B3- Cr Mo (2-1/4%Cr, 1/2%Mo)
“A” 2 3 3 4
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Specification SFA-5.18
Requirements for classifying carbon steel electrodes and rods d used d with ith th the ffollowing ll i welding ldi methods: th d Gas Metal Arc GMAW) Gas Tungsten Arc (GTAW) Plasma Arc (PAW)
Cont’d……
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Classification SFA-5.18 Rod
Suffix relating to manufacture f t chemical h i l composition
Electrode
ERXXS-X(XX) Minimum tensile strength ( ) (ksi) Bare, Solid wire or rod
Cont’d……
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Classification SFA-5.18 Rod
Suffix relating to manufacture chemical composition
Electrode
ERXXC-X(XX) Minimum tensile strength (ksi) Composite wire
Cont’d……
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Classification SFA-5.18 Rod
Electrode
Suffix relating to manufacture chemical composition
ER70S-X Minimum tensile strength 70ksi Bare, Solid wire or rod
Cont’d……
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Classification SFA-5.18 Rod
Suffix relating to manufacture f t chemical h i l composition
Electrode
ERXXS-X(XX) Minimum tensile strength ( ) (ksi) Solid Wire
Cont’d……
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Classification SFA-5.18 Rod
Low carbon with trace of Ti Zr and Al content Ti,
Electrode
ERXXS-2(XX) Minimum tensile strength (ksi) Bare, Solid Wire or rod
Cont’d……
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Classification SFA-5.18
ER70S-2, ER70S-3
Suffix
"A"
Shielding Gas
2
1
Ar/O2, Ar, Ar/CO2
3
1
Ar/CO2, CO2
4
1
CO2
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Welding Procedure Specification QW-200
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Outline Weld Procedure Specification (WPS) qualification Procedure Qualification Record (PQR) Writing a WPS Qualifying a WPS Testing weld specimens Groove weld Qualifications Miscellaneous applications pp Welding variables
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WPS Qualification
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What is a WPS?
A document that has been prepared by qualification and i used is d tto provide id necessary di direction ti and d control t l ffor making a weld t
Contents of a WPS
A WPS must address: Essential E ti l and dN Non-essential ti l variables i bl iin QW QW-250 250 Supplemental variables, when impact testing required Acceptance qualification ranges Other information
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Category of Variables Essential Must M t be b qualified lifi d when h a change h occur Non- Essential Must be addressed in the WPS Supplementary Essential Must be requalified when notch toughness is involved
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Considerations t designs Weld W ld and db base metal t l compatibility tibilit Heat treatment Metallurgical properties Desired mechanical properties Service requirements Welders Welders’ ability Equipment availability Weld location Economy E
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Procedure Qualification Record (PQR)
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PQR Record of welding data used to weld a test coupon Modifies M difi or jjustifies tifi the th WPS ing document that includes the results of welding and testing a coupon
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Contents of PQR Essential variables (as a minimum) Supplemental S l t lE Essential ti l V Variables i bl (Wh (When iimpactt ttesting ti required) Other information, if desired
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WPS/PQR Forms
Recommended, non-mandatory sample forms in QW-482 and d QW QW-483 483
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Multiple PQRs ing One WPS
Example PQR No. N 1 with ith PWHT and d PQR N No. 2 without ith t PWHT s a WPS with and without PWHT
It is possible to have one WPS that covers all possible welding circumstances
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Single PQR ing Multiple WPS
Example A PQR iis qualified lifi d ffor F4 and d F6 electrodes. l t d Thi This PQR can be used to a WPS using F4 electrodes and the second WPS using the F6 electrodes
QW-200.2 allows the use of one PQR to several WPS
Permitted Change without Requalification q
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Changes iin non-essential Ch ti l variable i bl Corrections or update, ed by an exciting PQR
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Permitted Changes to a PQR
Obvious errors or changes ed by data recorded d i ttestt coupon welding during ldi
Example: Code- driven material specification change in a later edition
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Example of a Revised RQR A section IX revision assigns a P-number to a material previously i l qualified lifi d b by material t i l specifications ifi ti The PQR may now be revised to identify a P-number rather than just a specific material
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PQR Review
PQRs may be written but Always Al maintain i t i th the original i i l Never White-out or pencil-in an original PQR Always rectify a PQR if revised and note reason for revision
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Combining Welding Procedures Several welding processes may be included in one WPS ( (qualified lifi d separated t d or combined) bi d) Section IX treats the following combination procedures: More than one welding process used More than one F-No. filler metal More than one A-No. electrode, except A-1 and A-2
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Examples of Combination Procedures WPS with ¼” GTAW and ¾” SMAW WPS with ith ½” SMAW (F (F-1) 1) and d ½” SMAW (F (F-4) 4) GTAW WPS and SMAW WPS used to make the same weld WPS with E7018-A1 and E8018-B2 (A-No. difference)
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Q lif i a WPS Qualifying
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Six steps to Qualify a WPS Review Essential Variables Write W it Draft D ft WPS Weld the test coupon using the WPS Prepare test specimens Evaluate test results Document results on a PQR and certify
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W iti a WPS Writing
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Writing a WPS What base material will be welded? What Wh t fill filler material t i l will ill b be used? d? What welding processes will be used? What service or production restriction (s) will be required?
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Base Material P-Number: QW-422 Substitute S b tit t mostt economical i l material t i l ffor ttesting: ti QW QW-424 424
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Filler Material F-Number: QW-432 A-Number: A N b QW QW-442 442 Shielding (Gas, Flux) Position restriction
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Processes to be used Required variables: QW-250 Production P d ti jt i t ttypes Welder technique Equipment available
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Service Requirements Code/Customer Preheat/PWHT Corrosion C i Notch toughness (supplemental variable)
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Qualifying a WPS
Write an unqualified WPS around job parameters.
Watch variables QW-250 and QW-260
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Qualifying a WPS Weld the test coupon using unqualified parameters QW250 QW-260 250, QW 260 Monitor all essential variables and record the actual values on the PQR Recommended also recording non-essential variables Record supplementary variables if required
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Qualifying a WPS Prepare the test coupon into specimens per QW-462, QW 463 QW-463 Cut test coupon to size per QW-451, QW-462, QW463 Make the required test per QW-451
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Qualifying a WPS Evaluate results against Article 1 standards, QW-150 to QW 260 QW-260 Compare unqualified WPS (essential and supplementary if required) Variable with results of the PQR Assure compliance to section IX
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Qualifying a WPS
When acceptable, certify the PQR The Th Certificate C tifi t H Holder ld • Approves WPS • Develops WPS and file • Uses the WPS for production welding
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Additional Qualification
An Additional PQR is required when: An A essential ti l variable i bl changes h The validity of the procedure is in doubt
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Notes A manufacturer must have a WPS that describes the welding ldi parameters t The WPS may reference production drawings to covers some variables The WPS may be pieces of paper or documents The WPS documentation must be controlled
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How to Change WPS Amendment (i. e additional PQR’s) New N (I (Including l di R Revision) i i )
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Groove Weld Qualification Thickness Limits and Test Specimens p
See reference table QW-451
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QW- 451.1: Example 1 T= .062” to 0.20” t= t 0.20” 0 20” max
T= 0.10”
GTAW
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QW- 451.1: Example 2 T= 1/16” to 1/2” t= 1/2” max
T= 1/4”
SMAW
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QW- 451.1: Example 3 T= 3/16” to 1” t= 1” max
T= 1/2”
SMAW
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QW- 451.1: Example 4
T= 3/16” to 1” GTAW t= t 1/4” max SMAW t=3/4” max
SMAW = 3/8” T= 1/2” GTAW = 1/8”
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QW- 451.1: Example 5
T= 3/16” to 2” GTAW t= t 1/2” max SMAW t=2” max
SMAW = 3/8” T= 1” GTAW = 1/4”
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QW- 451.1: Example 6
T= 3/16” to 2” F-4 F 4 SMAW = 2” max F-3 SMAW t=1/2” max
3/4“ SMAW F-4 T= 1” 1/4” SMAW F-3
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QW- 451.1: Example 7
T= 3/16” to 8” GTAW t= t 8” max SMAW t=8” max
SMAW = 3/4” 1-1/2” GTAW = 3/4”
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QW- 451.1: Example 8
T= 3/16” to 8” F-4 F 4 SMAW tt= 8” max F-1 SMAW t=1/2” max
1-1/4“ SMAW F-4 1-1/2” 1/4” SMAW F-1
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Observation If the welding material is less than 8” thick, a test coupon greater than 1-1/2” is not required. A weld-deposited ld d it d metal t l off 3/4” thick thi k qualifies lifi th the weld ld tto be deposited on maximum thickness. Filler metal is still limited to 8” maximum.
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Miscellaneous Application
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WPS for Root or Tack Welding QW-200.4(b) allows special qualification for root deposit or tack t k welds ld only. l Deposit filler metal on a 1/2” minimum base metal; the base metal qualification thickness range is unlimited. “t” deposit is limited to 2t
General Variables QW-202.2
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Variables that may be applicable or may reduce the number b off procedures d qualified. lifi d Partial penetration welds Groove and filler weld relationship P-11 requirement Weld metal repair and build-up Dissimilar base material thickness
Full Penetration Groove Welds QW-202.2(a) ( )
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Full Penetration Groove Welds shall q qualify y for both base metal and deposited metal used in production
Qualification for Filler Welds QW-202.2(c) ( )
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Groove weld test coupon qualifies for all fillet welds: Thickness Sizes Si Pipe Diameter Within essential variables
Note: exemption is P-11A P 11A groups 3 3,4,5 4 5 and P-11B P 11B which requires special qualification
Fillet Weld Qualification QW-202.2(c) ( )
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Table QW-451.3: information for types of tests that must b performed be f d Fillet weld qualification may not be used for pressureretaining welds
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Welding Variables
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QW-253: All Welding Variables (SMAW) QW-402: ts QW-403: QW 403 B Base M Metal t l QW-404: Filler Metals QW-405: Positions QW-406: Preheat QW-407: PWHT Qw Qw-409: 409: Electrical QW-410: Technique
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Essential Variables: SMAW QW-403.7: T/t limits>8"
QW-404.5 Ø A No.
QW-403.8:Ø T qualified
QW-404.30: Ø t
QW-403.9: t > 1/2"
QW-406.1 Decrease > 100 ºF
QW-403.11: Ø P-No. qualified
QW-407.1 Ø PWHT
QW-403.13: Ø P-No. 9/10
QW-407.4: T limits
QW-404.4: Ø F-No.
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QW-403.7: T/t Limits > 8” For thickness > 8”, the procedure test coupon thickness shall not be less than the thickness of the t to be welded in production weld divided by 1.33, and the maximum thickness of deposited weld metal qualified is 1.33 or 1.33t as applicable.
PWHT QW-407.1
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A separate PQR is required for each of the following conditions: diti For P-No. 1,3,4,5,6,9,10 and 11 materials, the following PWHT conditions apply: • No PWHT • PWHT below the lower transformation temperature
Cont’d……
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PWHT • PWHT above the upper transformation t temperature t (e.g. ( Normalizing) N li i ) • PWHT above the upper transformation temperature followed by heat treatment below the lower transformation temperature (e.g. Normalizing or quenching, followed by Tempering) • PWHT between the upper and lower transformation temperatures
Cont’d……
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PWHT
For all other materials, the following condition apply: No N PWHT PWHT within a specified temperature range
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Alternative Preheat
For thickness over 1-1/4 to 1-1/2” thick, you may preheat att 200 ºF
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Non-Essential Variable QW-402.1 QW 402 4 QW-402.4 QW-402.10 QW-402.11 QW-404.6 QW-404.33 QW-405 QW 405.1 1 QW-405.3
Ø Groove design – Backing B ki Ø Root Spacing ± Retainers Ø Diameter Ø AWS Class + Position Ø Vertical up or down
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Non-Essential Variable QW-406.2 QW 409 8 QW-409.8 QW-410.1 QW-410.5 QW-410.5 QW-410.25 QW-410 QW 410.26 26
Ø Preheat maintenance Ø Type T I or I & E range Ø String/Weave Ø Method Cleaning Ø Method back gouging Ø Manual or Automatic ± Peening
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QW-402.1
Change in type of groove Vee-groove U-groove Single bevel Double D bl b bevell
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QW- 402.4
Deletion of backing in single welded grove welds Double D bl welded ld d groove welds ld are considered id d welding ldi with backing
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QW-402.10
A change in specified root spacing.
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QW-402.11 The addition or deletion of nonmetallic retainers or nonfusing f i metal t l retainers t i
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QW-404.6 A change in the nominal size of the electrode or e electrodes l t d specified ifi d iin WPS
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QW-404.33 A change in the SFA specification filler metal classification; l ifi ti or, if nott conforming f i to t an AWS filler fill metal t l classification, a change in the manufacturer’s trade name for the electrode or filler metal
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QW-405.1 The addition of the welding position than those already qualified lifi d (S (See QW QW-120, 120 QW-130 QW 130 and d QW QW- 303)
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Limits of Position
Electrode must be suitable for the position to be used. Example: E7024 May not be used for vertical welding without special qualification Section II only recognize E7024 for flat groove and horizontal fillet welds
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QW-405.3 A change from upward to downward, or from downward t upward to d in i th the progression i specified ifi d ffor any off a vertical weld (the cover or wash may be up or down) A change in the range of electrode wire feed speed may be used as an alternative to amperage
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QW-406.2 A change in the maintenance or reduction of preheat upon completion l ti or welding ldi prior i tto any required i d postt weld heat treatment
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QW-409.8 A change in the type of current or polarity, a change in th range off amperage, exceptt for the f SMAW and d GTAW welding, a change in the range of voltage A change in the range of electrode wire feed speed may be used as an alternative to amperage
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QW-410.1 A change from the stringer bead technique to the weave b d ttechnique, bead h i or vice i versa
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QW-410.5 A change in the method of initial and inter- cleaning, (b hi (brushing, grinding, i di etc.) t )
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QW-410.6
A change in the method of back gouging
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QW-410.25 A change from the manual or semi-automatic to machine or automatic t ti welding ldi and d vice i versa
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QW-410.26
Addition or deletion of peening
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Non-Essential Variables Must be addressed on the WPS but do not require qualification
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Welder performance p Qualification QW 300 QW-300
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Outline Rules & Definitions Welders’ W ld ’ P Performance f Qualification Record Welder/Operator Record Test Coupons: Mechanical Testing Radiography Essential Variables (SMAW)
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R l and Rules d Definitions D fi iti
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Rule
Use QW-300, Article III to qualify welder ld plus: l Applicable QW-100 paragraphs Applicable QW-100 paragraphs
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D fi a W Define Welder ld
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A Welder is… One who performs a manual or semi-automatic welding operations ti
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A Welder Operator… … is one who operates machine or automatic t ti welding ldi equipment i t
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Purpose of Qualifying a Welder Operator To determine the operator’s ability to operate the welding equipment i t
Welders’ Performance Qualification Record
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A document used to record the Welder and Welding operator t qualification lifi ti
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Contents of the WPQ All applicable variables used by the Welder to make a t t coupon test Results of test Ranges of qualification (same variables only have minimum or maximum values)
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Essential Variables For Welders see QW-350 For F Welding W ldi O Operators t see QW-360 QW 360 Performance Qualification Record only has essential variables
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Welder/Operator Records QW-103.2 requires the Manufacturer to maintain a record f the for th results lt obtained bt i d iin performance f qualification lifi ti Records must be certified by the Manufacturer
See non-mandatory Appendix A for Sample from QW-484 QW 484
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Welder/Operator Records Welder’s Continuity Log: used by Manufactures to comply with QW-322.1
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T t Coupons Test C
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Welding of Test Coupon Must use a WPS (qualified or not) Each E h coupon mustt be b stamped t d with ith th the number, b symbol b l or letter assigned to identify the welder Preheat nor PWHT is not required WPS qualification may be used for the welder who made the weld
Visual Examination QW-302.4
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Plate coupon: Shall be performed on all surfaces (not marked k d “di “discard”) d”) Pipe: Shall be performed over the entire circumference, inside and out. Visual examination shall be per QW-194
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Q lifi ti by Qualification b Radiography R di h
Visual Examination QW-302.4
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Plate coupon: Shall be performed on all surfaces (not marked k d “di “discard”) d”) Pipe: Shall be performed over the entire circumference inside and out. Visual examination shall be per QW-194
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Qualification by Radiography Radiography may be used in-lieu of mechanical testing as permitted itt d iin QW QW-304 304 and d QW QW-305 305 Only limited to the following processes SMAW, SAW, PAW, GTAW (except for P-6X materials) GMAW (except short circuit)
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Welder Qualification by Radiography QW-304,, QW-302
Test coupon: 6” min. weld length Production P d ti weld: ld 6” min. i weld ld llength th Qualification on pipe shall include the entire weld circumference Small dia. pipe may require multiple coupons – the quantity need not exceed four
Welder Operator Qualification by Radiography g p y QW-304,, QW-302
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Test coupon: 6” min. weld length Production P d ti weld: ld 6” min. i weld ld llength th Qualification on pipe shall include the entire weld circumference Small dia. pipe may require multiple coupons – the quantity need not exceed four coupons
Requirements of Radiography QW-191
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Technique must meet ASME Code Section V, Article 2 Acceptance A t Criteria C it i per QW QW-191.2 191 2
Welding Operator Radiographic Acceptance p Criteria
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Same as welder as using test coupons Same S as C Construction t ti C Code d acceptance t criteria it i on production test coupon (QW-191.2.3)
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Failure of Test Coupon Immediate retest using same method Mechanical: M h i l T Two consecutive ti ttestt coupons Radiography: Two consecutive test coupons (NOT 12” in one coupon) With additional training, just start over No specific requirements for training in Section IX
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WPS Exceptions Examples of welding variables with no impact for performance f qualification lifi ti Preheat and PWHT Substitution of base material per QW-423 Possible substitution of filler metal Impact testing
Requirements of Radiography QW-191
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Not welding with a process during a six month period Specific S ifi reason to t question ti ability bilit
Renewal of Qualification QW-322.2 For each process One O test t t Any material, thickness, plate or pipe Any position Requalifies all previous qualifications
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Welder Essential Variables SMAW
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30
Ø t weld deposit
QW-405 Position
.1
Ø position
.3 3
Ø ↑↓ Vertical Welding g
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QW-402.4 The deletion of the backing in single welded groove ts DoubleD bl welded ld d groove welds ld are considered id d welding ldi with backing
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30
Ø t weld deposit
QW-405 Position
.1
Ø position
.3 3
Ø ↑↓ Vertical Welding g
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QW-403.16 A change in pipe diameter beyond the range qualified in QW 452 exceptt as otherwise QW-452, th i permitted itt d in i QW QW-303.1 303 1 and d QW-303.2
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30
Ø t weld deposit
QW-405 Position
.1
Ø position
.3
Ø ↑↓ Vertical Welding
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QW-403.18 A change from one P-Number to another P-Number or to a base b metal t l nott listed li t d iin QW QW-422, 422 exceptt as permitted itt d iin QW-423 and QW- 420.2 (S-Number)
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16 16
Ø Pipe Pi Diameter Di t
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30
Ø t weld deposit
QW-405 Position
.1
Ø position
.3
Ø ↑↓ Vertical Welding
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QW-404.15 A change from one F-Number in QW-432 to any FN b or tto any other Number th fill filler metal, t l exceptt as permitted itt d iin QW-433
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30 30
Ø t weld deposit
QW-405 P iti Position
.1
Ø position
.3
Ø ↑↓ Vertical Welding
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QW-404.30 A change in deposited weld metal thickness beyond the range qualified lifi d iin QW QW-452, 452 exceptt as otherwise th i permitted itt d in QW-303.31 and QW-303.2 When a welder is qualified using Radiography, the thickness range of QW-452.1 apply
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Deposited Metal Thickness QW-452.1 Q Type of t
Thickness of test Coupon Welded
Thickness "t" t of deposited weld metal qualified Max
Groove G Groove Groove
Up to 3/8"
2t
Over 3/8"
2t
1/2" and Over
Max. to be Welded
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Test Positions Four positions for welding with plate IG 2G IG, 2G, 3G 3G, 4G Four positions for welding with pipe IG, 2G, 5G, 6G
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Groove Weld in Plate Test Position
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Groove Weld in Plate Test Position
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Groove Weld in Plate Test Position
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Groove Weld in Plate Test Position
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Groove Welds Pipe Test Position
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Groove Welds Pipe Test Position
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Groove Welds Pipe Test Position
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Groove Welds Pipe Test Position
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Fillet Weld Plate Test Position
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Limits of Qualified Position and Diameter Welders qualified in the grooves position in QW-461.9 shall h ll b be qualified lifi d tto weld ld ffor th thatt position iti iin b both th groove and fillet welds Welders shall also be qualified to make fillet welds in all thickness and pipe diameter
Qualification Test
Position and type Weld Qualified [Note 1] back Groove
Fillet
Plate and Pipe Plate – Groove
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Pipes ≤ 24" OD
Plate and Pipe
1G
F
F [Note 2]
F
2G
F,H
F,H [Note 2]
F,H
3G
F,V
F [Note 2]
F,H,V
4G
F,O
F [Note 2]
F,H,O
3G and 4G
F,V,O
F [Note 2]
All
2G, 3G and 4G
All
F,H [Note 2]
All
Special Positions
SP
SP [Note 2]
SP,F
1F
...
...
F [Note 2]
2F
...
...
F,H [Note 2]
3F
...
...
F,H,V [Note 2]
4F
...
...
F,H,O [Note 2]
3F and 4F
...
...
All [Note 2]
Special Positions
...
...
SP,F [Note 2]
1G
F
F
F
2G
F,H
F,H
F,H
5G
F,V,O
F,V,O
All
6G
All
All
All
2G and 5G
All
All
All
Special Positions
SP
SP
SP,F
Plate - Fillet
1F
...
...
F
[Note 3]
2F
...
...
F,H
2FR
...
...
F,H
4F
...
...
F,H,O
5F
...
...
All
Special Positions
...
...
SP,F
Pipe – Filter
Pipe – Groove
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Position Qualification The Welder is qualified to weld Vertical V ti l Overhead Flat Positions For both Pipe Plate
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Position Qualification
The Welder Welded in Position 5G Pipe.
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Position Qualification
The Welder Welded in Position: 2G Pipe.
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Position Qualification
The Welder Welded 2G, 3G & 4G Plate
2G
3G
4G
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Position Qualification The Welder is qualified to weld in both horizontal and flat positions iti
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Position Qualification The Welder is qualified to all positions in both plate and pipe, i NPS 24 and d over Is the Welder qualified to weld all positions on an NPS 10 pipe
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18 18
Ø P P-No No.
QW-404 Filler metals
.15
Ø F-No.
.30 30
Ø t weld ld d deposit it
QW-405 P iti Position
.1
Ø position
.3
Ø ↑↓ Vertical Welding
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QW-405.3 A change from upward to downward, or from downward to upward, d iin th the progression i specified ifi d ffor any off a vertical weld, except that the cover or wash may be up or down The root may be run either up or down when the root is removed to sound weld metal in preparation for welding the second side
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THE END
Contents The ASME System Introduction to Section IX Organization O i ti and d Use U Section S ti IX Section IX Responsibilities Responsibilities of the Authorized Inspector or Owner Inspector
Responsibilities p of the Manufacturer Welding Processes and weld types Section II, Part C Welding Materials Welding Procedure Specification QW-200 Procedure Qualification Record (PQR) Qualifying a WPS Miscellaneous Application Welding Variables Welder performance Qualification QW-300 Welder Essential Variables SMAW
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Th ASME System The S t
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Outline The ASME System ASME Boiler B il & P Pressure V Vessell C Codes d Section IX Subcommittee Organization
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The ASME The American Society of Mechanical Engineers Provides minimum safety rules for Construction
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The
The American Society of Mechanical Engineers (ASME) Manufacturer/Certificates Holders Owners/s Authorized Inspection Agencies Jurisdiction/Regulatory Agencies voluntarily ed by their organizations
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Manufacturers
Owner/s
AIAs
ASME Voluntary
Jurisdictions
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Boiler & Pressure Vessel Committee 1911: ASME establishes a committee for the purpose of formulating standard rules for the construction of power boilers and other pressure vessels.
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Construction Codes Section I – Power Boilers Section III – Divs. 1 & 2 – Nuclear Components Section IV – Heating Boilers Section VIII,, Divs. 1,, 2 & 3 Pressure Vessels Section X – Fiberglass Reinforced Plastic Pressure Vessels
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History of Construction Codes 1914: Section I – Power Boilers 1923: Section IV – Heating Boilers 1928: Section VIII – Unrefined Pressure Vessels 1965: Section III- Nuclear Power Plant Components. p
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History of Construction Codes 1968: Renamed Section VIII, Div. 1 Pressure Vessel Code 1968: Section VIII, Div. 2 Alternate Rules for Pressure Vessels 1969: Section X – Fiberglass Reinforced Plastic Pressure Vessels
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Reference Codes Section II – Materials Section V - Nondestructive Examination Section IX - Welding & Brazing Qualification
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History of Reference Codes 1924: Section II - Material 1937: Section IX – Welding Qualification
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Subgroup Organization Section IX Committee
Subgroup Performance
Subgroup Procedures
Subgroup General Requirements
Subgroup Brazing
Subgroup Materials
Subgroup Strength off Weldment
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Introduction to Section IX
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Outline Foreword WPS/PQR Qualifications Q lifi ti Addenda Organization g and Use of Section IX
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Foreword Foreword covers topics such as: History Hi t off ASME C Committee itt Submitting interpretations to ASME as referenced in Appendix A Effect date of Addenda Addenda may be used upon issuance although it is not mandatory six month after issue Material requiremen
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ASME Code Section IX
Qualification Standard for Welding and Brazing Procedures Welders, Braziers, Welding and Brazing Operators.
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WPS/PQR Qualification Article I Paragraph QW-100.2 discusses “OLD” procedures d and dW Welders ld Q Qualifications lifi ti Qualification prior to 1962: Requires updating to a later edition or discard as valid After 1962, the Procedures and Welders are good forever
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Addenda Changes to the Code Issued annually Mandatory use six months after issue May be used upon issue
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Reference Code Section IX is a reference Code and may be used only when referenced and as it is referenced by the Construction or Governing Code
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O Organization i ti and d Use U Section S ti IX
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Organization
Part QW Article 1 – General Requirements Article 11 – Welding Procedure Qualification Article 111 – Welding Performance Qualification Article IV – Welding g Variables Article V – Standard Welding Procedure (AWS)
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Article I
General Requirements QW-100 General QW-110 Weld Ordination QW QW-120 120 Test Position for Groove welds QW-130 Test Position for Fillet Welds QW-140 Types and purpose of test and examinations
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Article I
General Requirements QW-150 Tension Test QW-160 Guided bend test QW QW-170 170 Notch Toughness Test QW-180 Fillet Weld Test QW-190 Other test & examinations
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Article II
Welding Procedure Qualification QW-200 General QW-210 Preparation of test coupon QW QW-250 250 Welding Variables
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Article III
Welding Performance Qualification QW-300 QW 300 G Generall QW-310 Qualification test coupon QW-320 Reset and renewal of qualification q QW-350 Welding variables for welders QW-360 Welding variable for welding Operators QW-380 Special processes
Article IV
Welding Data QW-400 Variables QW-410 Techniques QW-320 P-Number QW-430 F- Numbers QW-440 Weld metal chemical composition QW-450 QW 450 Specimens QW-460 Graphics QW-470 Etching process and reagents QW-490 QW 490 D Definitions fi i i
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Section IX Responsibilities
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Outline
Responsibilities Authorized Inspector Manufacturer
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Responsibilities of the Authorized Inspector or Owner Inspector
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Before Construction
that Procedure comply with procedure Procedure have been properly qualified Welding and Operators are properly qualified QC Manual has been followed
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During Construction Make sure welding is preformed within the parameters of the welding procedure welder qualification limits are neither exceeded nor expired i d
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Responsibilities of the Manufacturer
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Qualification of Procedure Establish a QC program to control qualification List Li t parameters t for f construction t ti Prepare a written WPS Assure metallurgical compatibility between filler and base metal Prepare and certify PQR based upon recorded data
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Notes Recommended that each Manufacturer has, or has access to, a welding metallurgist QW-200.3 Hold the manufacturer responsible for assuring that material are compatible when welded
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Qualification of Welders Establish QC program to control welder qualification Qualify each welder to the process being used Weld the test coupon in accordance with a written WPS
Cont’d…
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Qualification of Welder Control and supervise during the welding of coupon Maintain welder identification Document welder qualification
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Subcontracted Welding Procedures Applicable to Section I only when using “PP” stamp to ASME/ ANSI B31 B31.1 1C Code d The National Certified Pipe Welder’s Bureau (NWB), a national organization made up of member companies, provides welding procedures to its .
Cont’d…
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Subcontracted Welding Procedures
The member company must Sign each WPS and PQR Accept responsibility for its use and Code compliance
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Subcontracted Welding
Allowed by the construction Code, provided; Use U iis d described ib d iin th the QC M Manuall Work performed within the scope of the Certificate of Authorization Certificate holder has contractual control over the Welders.
Cont’d…
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Subcontracted Welding Certificate Holder has final responsibility for the welding Welder W ld iis under d subcontract b t t tto th the C Certificate tifi t holder h ld Welder are qualified by the Certificate Holder
Inter – Company Procedures QW-201
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Welding procedure may be used among different companies, provided they are within the same corporate structure Each company must state how they control such procedure in their QC Manual and satisfy the ASME during t review
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Example Company “A” qualifies and files several PQRs Company C “B” fil files th their i own PQR and d combines bi with ith th the PQRs from company “A” to develop a WPS The PQR from company “A” was not qualified. Is this permissible?
Inter – Company Procedures QW-300.2
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Allows to use the Welders amongst different companies without prequalification, provided both companies are within the same corporate structure Each company must satisfy the ASME requirements during the t review and incorporate the necessary control in the QC Manual
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Welding Processes and Weld Types
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Outline Welding Processes Weld W ld T Types
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Welding Processes OFW
Oxyfuel Welding
SMAW
Shield Metal Arc Welding g
SAW
Submerge Arc Welding
GMAW
Gas Metal Arc Welding
FCAW
Flux-Core Arc Welding
GTAW
Gas Tungsten Arc Welding
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Welding Processes PAW
Plasma Arc Welding
ESW
Electro Slag g Welding g
EGW
Electro Gas Welding
EBW
Electro Beam Welding
LBW
Laser Beam Welding
Stud Welding Inertia and Continuous Friction
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Special Processes Corrosion resistance overlay and hard surface overlay welding ldi Qualification requirement: QW-453 Essential variables: QW-250
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Weld Types Three types of welds covered in Section IX Groove G Weld W ld U Groove J Groove V Groove Partial Penetration Fillet Welds Stud Welds
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‘J’ and ‘U’ Preparations
“U” preparation Root radius Land
Double “U” butt
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Groove Weld 1
?
Cont’d……
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Groove Weld
1
Groove Angle
Cont’d……
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Groove Weld 1
? 2
Cont’d……
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Groove Weld
1
2
Bevel Angle
Cont’d……
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Groove Weld ? 3 1
2
Cont’d……
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Groove Weld 3 1
2
Groove Face
Cont’d……
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Groove Weld 3 1
2
? 4
Cont’d……
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Groove Weld 3 1
2
Root Face
4
Cont’d……
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Groove Weld 3 1
2
4 5 ?
Cont’d……
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Groove Weld 3 1
2
Root Gap 4 5
Cont’d……
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Groove Weld Groove Face Groove Angle Bevel Angle
Root Face Root Gap
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Fillet Weld
1
?
Cont’d……
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Fillet Weld
1
?
Toe of Weld
Cont’d……
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Fillet Weld
2
1 ?
Cont’d……
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Fillet Weld
2
1
Weld Face
Cont’d……
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Fillet Weld
2
1
? 3
Cont’d……
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Fillet Weld
2
1
3
Weld Size
Cont’d……
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Fillet Weld
2 4
1
3
?
Cont’d……
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Fillet Weld
2 4
1
3
Weld Leg
Cont’d……
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Fillet Weld
2
1
3
4
5 ?
Cont’d……
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Fillet Weld
2
1
3
4
5 Weld Root
Cont’d……
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Fillet Weld
1
2
3
4
5
6 ?
Cont’d……
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Fillet Weld
1
2
3
4
5
6 Weld Throat
Cont’d……
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Fillet Weld
Toe Face Leg
Root
Weld Size
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Stud Welding
1
?
Cont’d……
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Stud Welding
Work Piece 1
Cont’d……
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Stud Welding
? Work Piece
2
1
Cont’d……
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Stud Welding
Stud Work Piece
2
1
Cont’d……
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Stud Welding
Stud Work Piece 1
2 3 ?
Cont’d……
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Stud Welding
Stud Work Piece 1
2 3
Weld
Cont’d……
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Section II, II Part C Welding Material
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Outline
Scope of Section II, Part C
Electrode Identification
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ASME Section II, Part C
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Scope Section II- material specifications referenced in the f b i ti C fabrication Code. d Part C – Material Specification for welding materials
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Section II, Part C
Information includes: Processes P th t may be that b used d with ith various i electrodes l t d Recommended storage requirements AWS marking Recommended electrode positions Recommended polarity Information on “how” how to meet SFA specification
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Table of Contents SFA-5.1 Carbon Steel covered arc welding electrodes. SFA-5.4 SFA 5 4 Corrosion C i resistance i t Cr C and dC Cr-Ni Ni steel t l covered d electrodes SFA- 5.5 Low alloy steel-covered arc welding electrodes SFA-2.18 Carbon steel filler metals for Gas Shielded Arc Welding
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Specification SFA-5.1 Requirements for classifying carbon steel electrodes used d ffor Shielded Shi ld d M Metal t lA Arc W Welding ldi (SMAW) Example: E6010, E6011, E7018 and E7028
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Specification SFA-5.4 Requirement for classifying stainless steel-covered electrodes l t d used d ffor SMAW Example: E308H, E309L, E317L and E317L
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Specification SFA-5.5 Requirements for classifying low alloy steel-covered electrodes l t d used d ffor SMAW Example: E7018-A1, E8016-B2, E9015-B3 and E9018-B3L
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Specification SFA-5.18 Requirements for classifying carbon steel electrodes and rods used for Gas Shielded Arc Welding (GSAW) Examples: ER70S2, ER70S3, ER70SG and ER70CGM.
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Electrode Identification
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Marking Requirements SFA-5.1 requires marking on both the package and electrode l t d Package • AWS classification and class • Supplier’s name and trade designation • Size and net weight • Lot, Lot control or heat number Electrode • Classification must be within 2.5” of grip end • Prefix P fi “E” may be b omitted itt d
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Classification SFA-5.1
Electrode
P iti Position
EXXXX- 1
For 018 Electrodes, “1” indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength (ksi) Type off coating T ti and d recommended current
Cont’d……
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Classification SFA-5.1
Electrode
Position
EXXYY- 1
For 016 E7016 & E7018 Electrodes, “1” 1 indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength 70 ksi Type of coating and recommended current
Cont’d……
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Classification SFA-5.1
Electrode
Position
EXXYY-1
For E7016 & E7018 Electrodes, “1” indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength 70 ksi Type off coating T ti and d recommended current
Cont’d……
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Classification SFA-5.1
Electrode
All P Position iti
EXX18- 1
For E7016 & E7018 Electrodes, “1” indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength 70 ksi Low Hydrogen, L H d Potassium, P t i Iron powder and use for AC or DCEP Cont’d……
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Classification SFA-5.1
Electrode
Position
EXXYY-1
For E7016 & E7018 Electrodes, “1” indicates that charpy values of 20 ft-lbs at -50 F have been met
Minimum tensile strength 70 ksi Type off coating T ti and d recommended current
Cont’d……
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Example of SFA-5.1 Electrode E6010, E7018, E7024 Note: N t O Only l 60 kksii and d 70 kksii ttensile il electrode l t d are covered d by this specification
Cont’d……
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Specification SFA-5.4 Requirements for classifying corrosion-resistant and chromium h i nickel i k l steel-covered t l d arc welding ldi electrodes l t d used for SMAW
Cont’d……
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Classification SFA-5.4
Electrode
Usability (Position & Current type
E-XXX-XXX-XX Chemical Composition (first three digits)
One or more letters indicating modification of basic composition
Cont’d……
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Classification SFA-5.4 Usability y ((Position & Current type Electrode
E-XXX-YYY-XX Chemical Composition (first three digits)
One or more letters indicating modification of basic composition
Cont’d……
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Classification SFA-5.4 Usability (Position & Current type
Electrode
E-308-YYY-XX 19 Cr, Cr 10 Ni One or more letters indicating modification of basic composition
Cont’d……
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Classification SFA-5.4 Usability (Position & Current type
Electrode
E-XXX-L-XX Chemical Composition (first three digits) Low carbon contents 0.04% 0 04% max
Cont’d……
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Classification SFA-5.4 Electrode
DCEP or AC/ all position
E-XXX-YYY-16 Chemical Composition (first three digits)
One or more letters g modification of indicating basic composition
Cont’d……
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Example of SFA-5.4 E308L, E308L-16, E309Cb L Legend d L
Low Carbon
Cb
Addition of columbium, Reduction of Carbon
Mo
Addition of molybdenum, reduction of carbon
15
Lime covering, use DCEP
16
Lime or titania, titania use with DCEN or DCEP
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Specification SFA-5.5 Requirements for classifying low-alloy steel electrode used d ffor SMAW
Cont’d……
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Classification SFA-5.5
Position Electrode
One or more letters & number indicating chemical h i l composition iti off deposited metal
EXX (X) XX-XXX Minimum tensile strength ( ) (ksi) Type of coating & recommended current Cont’d……
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Classification SFA-5.5
Position Electrode
One or more letters & number indicating chemical composition of deposited metal
EXX (X) YY-XXX Minimum tensile strength (ksi) Type of coating & recommended current Cont’d……
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Classification SFA-5.5
Position Electrode
One or more letters & number indicating g chemical composition of deposited metal
E 100 XX-XXX Minimum tensile strength 100 ksi Type of coating & recommended current Cont’d……
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Specification SFA-5.5
All Position Electrode
One or more letters & number indicating g chemical composition of deposited metal
EXX (X) 16-XXX Minimum tensile strength (ksi) Low hydrogen Potassium AC/DCEP Cont’d……
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Classification SFA-5.5
All Position Electrode
One or more letters & number indicating chemical composition of deposited metal
EXX (X) 16-B2L Minimum tensile strength (ksi) Low hydrogen Potassium AC/DCEP Cont’d……
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Classification SFA-5.5 Position Electrode
Chromium- molybdenum steel electrode
EXX (X) ( ) YY-B2L 2 Minimum tensile strength (ksi) Type of coating & recommended current
Cont’d……
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Example of SFA-5.5 E7012, E7013-B3“A” Chemical C C Composition Number A1- C Mo (1/2 % Mo) B1 B1- Cr Mo (1/2%Cr (1/2%Cr,1/2%Mo) 1/2%Mo) B2- Cr Mo (1-1/4%Cr, 1/2%Mo) B3- Cr Mo (2-1/4%Cr, 1/2%Mo)
“A” 2 3 3 4
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Specification SFA-5.18
Requirements for classifying carbon steel electrodes and rods d used d with ith th the ffollowing ll i welding ldi methods: th d Gas Metal Arc GMAW) Gas Tungsten Arc (GTAW) Plasma Arc (PAW)
Cont’d……
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Classification SFA-5.18 Rod
Suffix relating to manufacture f t chemical h i l composition
Electrode
ERXXS-X(XX) Minimum tensile strength ( ) (ksi) Bare, Solid wire or rod
Cont’d……
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Classification SFA-5.18 Rod
Suffix relating to manufacture chemical composition
Electrode
ERXXC-X(XX) Minimum tensile strength (ksi) Composite wire
Cont’d……
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Classification SFA-5.18 Rod
Electrode
Suffix relating to manufacture chemical composition
ER70S-X Minimum tensile strength 70ksi Bare, Solid wire or rod
Cont’d……
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Classification SFA-5.18 Rod
Suffix relating to manufacture f t chemical h i l composition
Electrode
ERXXS-X(XX) Minimum tensile strength ( ) (ksi) Solid Wire
Cont’d……
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Classification SFA-5.18 Rod
Low carbon with trace of Ti Zr and Al content Ti,
Electrode
ERXXS-2(XX) Minimum tensile strength (ksi) Bare, Solid Wire or rod
Cont’d……
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Classification SFA-5.18
ER70S-2, ER70S-3
Suffix
"A"
Shielding Gas
2
1
Ar/O2, Ar, Ar/CO2
3
1
Ar/CO2, CO2
4
1
CO2
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Welding Procedure Specification QW-200
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Outline Weld Procedure Specification (WPS) qualification Procedure Qualification Record (PQR) Writing a WPS Qualifying a WPS Testing weld specimens Groove weld Qualifications Miscellaneous applications pp Welding variables
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WPS Qualification
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What is a WPS?
A document that has been prepared by qualification and i used is d tto provide id necessary di direction ti and d control t l ffor making a weld t
Contents of a WPS
A WPS must address: Essential E ti l and dN Non-essential ti l variables i bl iin QW QW-250 250 Supplemental variables, when impact testing required Acceptance qualification ranges Other information
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Category of Variables Essential Must M t be b qualified lifi d when h a change h occur Non- Essential Must be addressed in the WPS Supplementary Essential Must be requalified when notch toughness is involved
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Considerations t designs Weld W ld and db base metal t l compatibility tibilit Heat treatment Metallurgical properties Desired mechanical properties Service requirements Welders Welders’ ability Equipment availability Weld location Economy E
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Procedure Qualification Record (PQR)
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PQR Record of welding data used to weld a test coupon Modifies M difi or jjustifies tifi the th WPS ing document that includes the results of welding and testing a coupon
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Contents of PQR Essential variables (as a minimum) Supplemental S l t lE Essential ti l V Variables i bl (Wh (When iimpactt ttesting ti required) Other information, if desired
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WPS/PQR Forms
Recommended, non-mandatory sample forms in QW-482 and d QW QW-483 483
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Multiple PQRs ing One WPS
Example PQR No. N 1 with ith PWHT and d PQR N No. 2 without ith t PWHT s a WPS with and without PWHT
It is possible to have one WPS that covers all possible welding circumstances
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Single PQR ing Multiple WPS
Example A PQR iis qualified lifi d ffor F4 and d F6 electrodes. l t d Thi This PQR can be used to a WPS using F4 electrodes and the second WPS using the F6 electrodes
QW-200.2 allows the use of one PQR to several WPS
Permitted Change without Requalification q
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Changes iin non-essential Ch ti l variable i bl Corrections or update, ed by an exciting PQR
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Permitted Changes to a PQR
Obvious errors or changes ed by data recorded d i ttestt coupon welding during ldi
Example: Code- driven material specification change in a later edition
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Example of a Revised RQR A section IX revision assigns a P-number to a material previously i l qualified lifi d b by material t i l specifications ifi ti The PQR may now be revised to identify a P-number rather than just a specific material
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PQR Review
PQRs may be written but Always Al maintain i t i th the original i i l Never White-out or pencil-in an original PQR Always rectify a PQR if revised and note reason for revision
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Combining Welding Procedures Several welding processes may be included in one WPS ( (qualified lifi d separated t d or combined) bi d) Section IX treats the following combination procedures: More than one welding process used More than one F-No. filler metal More than one A-No. electrode, except A-1 and A-2
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Examples of Combination Procedures WPS with ¼” GTAW and ¾” SMAW WPS with ith ½” SMAW (F (F-1) 1) and d ½” SMAW (F (F-4) 4) GTAW WPS and SMAW WPS used to make the same weld WPS with E7018-A1 and E8018-B2 (A-No. difference)
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Q lif i a WPS Qualifying
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Six steps to Qualify a WPS Review Essential Variables Write W it Draft D ft WPS Weld the test coupon using the WPS Prepare test specimens Evaluate test results Document results on a PQR and certify
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W iti a WPS Writing
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Writing a WPS What base material will be welded? What Wh t fill filler material t i l will ill b be used? d? What welding processes will be used? What service or production restriction (s) will be required?
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Base Material P-Number: QW-422 Substitute S b tit t mostt economical i l material t i l ffor ttesting: ti QW QW-424 424
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Filler Material F-Number: QW-432 A-Number: A N b QW QW-442 442 Shielding (Gas, Flux) Position restriction
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Processes to be used Required variables: QW-250 Production P d ti jt i t ttypes Welder technique Equipment available
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Service Requirements Code/Customer Preheat/PWHT Corrosion C i Notch toughness (supplemental variable)
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Qualifying a WPS
Write an unqualified WPS around job parameters.
Watch variables QW-250 and QW-260
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Qualifying a WPS Weld the test coupon using unqualified parameters QW250 QW-260 250, QW 260 Monitor all essential variables and record the actual values on the PQR Recommended also recording non-essential variables Record supplementary variables if required
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Qualifying a WPS Prepare the test coupon into specimens per QW-462, QW 463 QW-463 Cut test coupon to size per QW-451, QW-462, QW463 Make the required test per QW-451
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Qualifying a WPS Evaluate results against Article 1 standards, QW-150 to QW 260 QW-260 Compare unqualified WPS (essential and supplementary if required) Variable with results of the PQR Assure compliance to section IX
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Qualifying a WPS
When acceptable, certify the PQR The Th Certificate C tifi t H Holder ld • Approves WPS • Develops WPS and file • Uses the WPS for production welding
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Additional Qualification
An Additional PQR is required when: An A essential ti l variable i bl changes h The validity of the procedure is in doubt
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Notes A manufacturer must have a WPS that describes the welding ldi parameters t The WPS may reference production drawings to covers some variables The WPS may be pieces of paper or documents The WPS documentation must be controlled
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How to Change WPS Amendment (i. e additional PQR’s) New N (I (Including l di R Revision) i i )
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Groove Weld Qualification Thickness Limits and Test Specimens p
See reference table QW-451
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QW- 451.1: Example 1 T= .062” to 0.20” t= t 0.20” 0 20” max
T= 0.10”
GTAW
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QW- 451.1: Example 2 T= 1/16” to 1/2” t= 1/2” max
T= 1/4”
SMAW
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QW- 451.1: Example 3 T= 3/16” to 1” t= 1” max
T= 1/2”
SMAW
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QW- 451.1: Example 4
T= 3/16” to 1” GTAW t= t 1/4” max SMAW t=3/4” max
SMAW = 3/8” T= 1/2” GTAW = 1/8”
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QW- 451.1: Example 5
T= 3/16” to 2” GTAW t= t 1/2” max SMAW t=2” max
SMAW = 3/8” T= 1” GTAW = 1/4”
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QW- 451.1: Example 6
T= 3/16” to 2” F-4 F 4 SMAW = 2” max F-3 SMAW t=1/2” max
3/4“ SMAW F-4 T= 1” 1/4” SMAW F-3
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QW- 451.1: Example 7
T= 3/16” to 8” GTAW t= t 8” max SMAW t=8” max
SMAW = 3/4” 1-1/2” GTAW = 3/4”
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QW- 451.1: Example 8
T= 3/16” to 8” F-4 F 4 SMAW tt= 8” max F-1 SMAW t=1/2” max
1-1/4“ SMAW F-4 1-1/2” 1/4” SMAW F-1
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Observation If the welding material is less than 8” thick, a test coupon greater than 1-1/2” is not required. A weld-deposited ld d it d metal t l off 3/4” thick thi k qualifies lifi th the weld ld tto be deposited on maximum thickness. Filler metal is still limited to 8” maximum.
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Miscellaneous Application
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WPS for Root or Tack Welding QW-200.4(b) allows special qualification for root deposit or tack t k welds ld only. l Deposit filler metal on a 1/2” minimum base metal; the base metal qualification thickness range is unlimited. “t” deposit is limited to 2t
General Variables QW-202.2
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Variables that may be applicable or may reduce the number b off procedures d qualified. lifi d Partial penetration welds Groove and filler weld relationship P-11 requirement Weld metal repair and build-up Dissimilar base material thickness
Full Penetration Groove Welds QW-202.2(a) ( )
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Full Penetration Groove Welds shall q qualify y for both base metal and deposited metal used in production
Qualification for Filler Welds QW-202.2(c) ( )
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Groove weld test coupon qualifies for all fillet welds: Thickness Sizes Si Pipe Diameter Within essential variables
Note: exemption is P-11A P 11A groups 3 3,4,5 4 5 and P-11B P 11B which requires special qualification
Fillet Weld Qualification QW-202.2(c) ( )
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Table QW-451.3: information for types of tests that must b performed be f d Fillet weld qualification may not be used for pressureretaining welds
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Welding Variables
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QW-253: All Welding Variables (SMAW) QW-402: ts QW-403: QW 403 B Base M Metal t l QW-404: Filler Metals QW-405: Positions QW-406: Preheat QW-407: PWHT Qw Qw-409: 409: Electrical QW-410: Technique
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Essential Variables: SMAW QW-403.7: T/t limits>8"
QW-404.5 Ø A No.
QW-403.8:Ø T qualified
QW-404.30: Ø t
QW-403.9: t > 1/2"
QW-406.1 Decrease > 100 ºF
QW-403.11: Ø P-No. qualified
QW-407.1 Ø PWHT
QW-403.13: Ø P-No. 9/10
QW-407.4: T limits
QW-404.4: Ø F-No.
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QW-403.7: T/t Limits > 8” For thickness > 8”, the procedure test coupon thickness shall not be less than the thickness of the t to be welded in production weld divided by 1.33, and the maximum thickness of deposited weld metal qualified is 1.33 or 1.33t as applicable.
PWHT QW-407.1
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A separate PQR is required for each of the following conditions: diti For P-No. 1,3,4,5,6,9,10 and 11 materials, the following PWHT conditions apply: • No PWHT • PWHT below the lower transformation temperature
Cont’d……
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PWHT • PWHT above the upper transformation t temperature t (e.g. ( Normalizing) N li i ) • PWHT above the upper transformation temperature followed by heat treatment below the lower transformation temperature (e.g. Normalizing or quenching, followed by Tempering) • PWHT between the upper and lower transformation temperatures
Cont’d……
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PWHT
For all other materials, the following condition apply: No N PWHT PWHT within a specified temperature range
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Alternative Preheat
For thickness over 1-1/4 to 1-1/2” thick, you may preheat att 200 ºF
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Non-Essential Variable QW-402.1 QW 402 4 QW-402.4 QW-402.10 QW-402.11 QW-404.6 QW-404.33 QW-405 QW 405.1 1 QW-405.3
Ø Groove design – Backing B ki Ø Root Spacing ± Retainers Ø Diameter Ø AWS Class + Position Ø Vertical up or down
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Non-Essential Variable QW-406.2 QW 409 8 QW-409.8 QW-410.1 QW-410.5 QW-410.5 QW-410.25 QW-410 QW 410.26 26
Ø Preheat maintenance Ø Type T I or I & E range Ø String/Weave Ø Method Cleaning Ø Method back gouging Ø Manual or Automatic ± Peening
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QW-402.1
Change in type of groove Vee-groove U-groove Single bevel Double D bl b bevell
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QW- 402.4
Deletion of backing in single welded grove welds Double D bl welded ld d groove welds ld are considered id d welding ldi with backing
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QW-402.10
A change in specified root spacing.
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QW-402.11 The addition or deletion of nonmetallic retainers or nonfusing f i metal t l retainers t i
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QW-404.6 A change in the nominal size of the electrode or e electrodes l t d specified ifi d iin WPS
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QW-404.33 A change in the SFA specification filler metal classification; l ifi ti or, if nott conforming f i to t an AWS filler fill metal t l classification, a change in the manufacturer’s trade name for the electrode or filler metal
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QW-405.1 The addition of the welding position than those already qualified lifi d (S (See QW QW-120, 120 QW-130 QW 130 and d QW QW- 303)
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Limits of Position
Electrode must be suitable for the position to be used. Example: E7024 May not be used for vertical welding without special qualification Section II only recognize E7024 for flat groove and horizontal fillet welds
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QW-405.3 A change from upward to downward, or from downward t upward to d in i th the progression i specified ifi d ffor any off a vertical weld (the cover or wash may be up or down) A change in the range of electrode wire feed speed may be used as an alternative to amperage
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QW-406.2 A change in the maintenance or reduction of preheat upon completion l ti or welding ldi prior i tto any required i d postt weld heat treatment
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QW-409.8 A change in the type of current or polarity, a change in th range off amperage, exceptt for the f SMAW and d GTAW welding, a change in the range of voltage A change in the range of electrode wire feed speed may be used as an alternative to amperage
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QW-410.1 A change from the stringer bead technique to the weave b d ttechnique, bead h i or vice i versa
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QW-410.5 A change in the method of initial and inter- cleaning, (b hi (brushing, grinding, i di etc.) t )
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QW-410.6
A change in the method of back gouging
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QW-410.25 A change from the manual or semi-automatic to machine or automatic t ti welding ldi and d vice i versa
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QW-410.26
Addition or deletion of peening
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Non-Essential Variables Must be addressed on the WPS but do not require qualification
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Welder performance p Qualification QW 300 QW-300
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Outline Rules & Definitions Welders’ W ld ’ P Performance f Qualification Record Welder/Operator Record Test Coupons: Mechanical Testing Radiography Essential Variables (SMAW)
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R l and Rules d Definitions D fi iti
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Rule
Use QW-300, Article III to qualify welder ld plus: l Applicable QW-100 paragraphs Applicable QW-100 paragraphs
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D fi a W Define Welder ld
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A Welder is… One who performs a manual or semi-automatic welding operations ti
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A Welder Operator… … is one who operates machine or automatic t ti welding ldi equipment i t
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Purpose of Qualifying a Welder Operator To determine the operator’s ability to operate the welding equipment i t
Welders’ Performance Qualification Record
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A document used to record the Welder and Welding operator t qualification lifi ti
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Contents of the WPQ All applicable variables used by the Welder to make a t t coupon test Results of test Ranges of qualification (same variables only have minimum or maximum values)
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Essential Variables For Welders see QW-350 For F Welding W ldi O Operators t see QW-360 QW 360 Performance Qualification Record only has essential variables
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Welder/Operator Records QW-103.2 requires the Manufacturer to maintain a record f the for th results lt obtained bt i d iin performance f qualification lifi ti Records must be certified by the Manufacturer
See non-mandatory Appendix A for Sample from QW-484 QW 484
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Welder/Operator Records Welder’s Continuity Log: used by Manufactures to comply with QW-322.1
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T t Coupons Test C
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Welding of Test Coupon Must use a WPS (qualified or not) Each E h coupon mustt be b stamped t d with ith th the number, b symbol b l or letter assigned to identify the welder Preheat nor PWHT is not required WPS qualification may be used for the welder who made the weld
Visual Examination QW-302.4
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Plate coupon: Shall be performed on all surfaces (not marked k d “di “discard”) d”) Pipe: Shall be performed over the entire circumference, inside and out. Visual examination shall be per QW-194
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Q lifi ti by Qualification b Radiography R di h
Visual Examination QW-302.4
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Plate coupon: Shall be performed on all surfaces (not marked k d “di “discard”) d”) Pipe: Shall be performed over the entire circumference inside and out. Visual examination shall be per QW-194
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Qualification by Radiography Radiography may be used in-lieu of mechanical testing as permitted itt d iin QW QW-304 304 and d QW QW-305 305 Only limited to the following processes SMAW, SAW, PAW, GTAW (except for P-6X materials) GMAW (except short circuit)
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Welder Qualification by Radiography QW-304,, QW-302
Test coupon: 6” min. weld length Production P d ti weld: ld 6” min. i weld ld llength th Qualification on pipe shall include the entire weld circumference Small dia. pipe may require multiple coupons – the quantity need not exceed four
Welder Operator Qualification by Radiography g p y QW-304,, QW-302
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Test coupon: 6” min. weld length Production P d ti weld: ld 6” min. i weld ld llength th Qualification on pipe shall include the entire weld circumference Small dia. pipe may require multiple coupons – the quantity need not exceed four coupons
Requirements of Radiography QW-191
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Technique must meet ASME Code Section V, Article 2 Acceptance A t Criteria C it i per QW QW-191.2 191 2
Welding Operator Radiographic Acceptance p Criteria
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Same as welder as using test coupons Same S as C Construction t ti C Code d acceptance t criteria it i on production test coupon (QW-191.2.3)
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Failure of Test Coupon Immediate retest using same method Mechanical: M h i l T Two consecutive ti ttestt coupons Radiography: Two consecutive test coupons (NOT 12” in one coupon) With additional training, just start over No specific requirements for training in Section IX
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WPS Exceptions Examples of welding variables with no impact for performance f qualification lifi ti Preheat and PWHT Substitution of base material per QW-423 Possible substitution of filler metal Impact testing
Requirements of Radiography QW-191
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Not welding with a process during a six month period Specific S ifi reason to t question ti ability bilit
Renewal of Qualification QW-322.2 For each process One O test t t Any material, thickness, plate or pipe Any position Requalifies all previous qualifications
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Welder Essential Variables SMAW
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30
Ø t weld deposit
QW-405 Position
.1
Ø position
.3 3
Ø ↑↓ Vertical Welding g
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QW-402.4 The deletion of the backing in single welded groove ts DoubleD bl welded ld d groove welds ld are considered id d welding ldi with backing
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30
Ø t weld deposit
QW-405 Position
.1
Ø position
.3 3
Ø ↑↓ Vertical Welding g
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QW-403.16 A change in pipe diameter beyond the range qualified in QW 452 exceptt as otherwise QW-452, th i permitted itt d in i QW QW-303.1 303 1 and d QW-303.2
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30
Ø t weld deposit
QW-405 Position
.1
Ø position
.3
Ø ↑↓ Vertical Welding
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QW-403.18 A change from one P-Number to another P-Number or to a base b metal t l nott listed li t d iin QW QW-422, 422 exceptt as permitted itt d iin QW-423 and QW- 420.2 (S-Number)
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16 16
Ø Pipe Pi Diameter Di t
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30
Ø t weld deposit
QW-405 Position
.1
Ø position
.3
Ø ↑↓ Vertical Welding
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QW-404.15 A change from one F-Number in QW-432 to any FN b or tto any other Number th fill filler metal, t l exceptt as permitted itt d iin QW-433
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18
Ø P-No.
QW-404 Filler metals
.15
Ø F-No.
.30 30
Ø t weld deposit
QW-405 P iti Position
.1
Ø position
.3
Ø ↑↓ Vertical Welding
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QW-404.30 A change in deposited weld metal thickness beyond the range qualified lifi d iin QW QW-452, 452 exceptt as otherwise th i permitted itt d in QW-303.31 and QW-303.2 When a welder is qualified using Radiography, the thickness range of QW-452.1 apply
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Deposited Metal Thickness QW-452.1 Q Type of t
Thickness of test Coupon Welded
Thickness "t" t of deposited weld metal qualified Max
Groove G Groove Groove
Up to 3/8"
2t
Over 3/8"
2t
1/2" and Over
Max. to be Welded
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Test Positions Four positions for welding with plate IG 2G IG, 2G, 3G 3G, 4G Four positions for welding with pipe IG, 2G, 5G, 6G
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Groove Weld in Plate Test Position
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Groove Weld in Plate Test Position
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Groove Weld in Plate Test Position
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Groove Weld in Plate Test Position
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Groove Welds Pipe Test Position
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Groove Welds Pipe Test Position
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Groove Welds Pipe Test Position
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Groove Welds Pipe Test Position
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Fillet Weld Plate Test Position
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Limits of Qualified Position and Diameter Welders qualified in the grooves position in QW-461.9 shall h ll b be qualified lifi d tto weld ld ffor th thatt position iti iin b both th groove and fillet welds Welders shall also be qualified to make fillet welds in all thickness and pipe diameter
Qualification Test
Position and type Weld Qualified [Note 1] back Groove
Fillet
Plate and Pipe Plate – Groove
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Pipes ≤ 24" OD
Plate and Pipe
1G
F
F [Note 2]
F
2G
F,H
F,H [Note 2]
F,H
3G
F,V
F [Note 2]
F,H,V
4G
F,O
F [Note 2]
F,H,O
3G and 4G
F,V,O
F [Note 2]
All
2G, 3G and 4G
All
F,H [Note 2]
All
Special Positions
SP
SP [Note 2]
SP,F
1F
...
...
F [Note 2]
2F
...
...
F,H [Note 2]
3F
...
...
F,H,V [Note 2]
4F
...
...
F,H,O [Note 2]
3F and 4F
...
...
All [Note 2]
Special Positions
...
...
SP,F [Note 2]
1G
F
F
F
2G
F,H
F,H
F,H
5G
F,V,O
F,V,O
All
6G
All
All
All
2G and 5G
All
All
All
Special Positions
SP
SP
SP,F
Plate - Fillet
1F
...
...
F
[Note 3]
2F
...
...
F,H
2FR
...
...
F,H
4F
...
...
F,H,O
5F
...
...
All
Special Positions
...
...
SP,F
Pipe – Filter
Pipe – Groove
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Position Qualification The Welder is qualified to weld Vertical V ti l Overhead Flat Positions For both Pipe Plate
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Position Qualification
The Welder Welded in Position 5G Pipe.
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Position Qualification
The Welder Welded in Position: 2G Pipe.
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Position Qualification
The Welder Welded 2G, 3G & 4G Plate
2G
3G
4G
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Position Qualification The Welder is qualified to weld in both horizontal and flat positions iti
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Position Qualification The Welder is qualified to all positions in both plate and pipe, i NPS 24 and d over Is the Welder qualified to weld all positions on an NPS 10 pipe
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QW-353: SMAW Paragraph QW-402 ts
Brief of Variables .4
Deletion of Backing
QW-403 Base Material
.16
Ø Pipe Diameter
.18 18
Ø P P-No No.
QW-404 Filler metals
.15
Ø F-No.
.30 30
Ø t weld ld d deposit it
QW-405 P iti Position
.1
Ø position
.3
Ø ↑↓ Vertical Welding
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QW-405.3 A change from upward to downward, or from downward to upward, d iin th the progression i specified ifi d ffor any off a vertical weld, except that the cover or wash may be up or down The root may be run either up or down when the root is removed to sound weld metal in preparation for welding the second side
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THE END
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