Jis G 3106 43345e

JIS G 3106 (Rolled Steel for welded structure) SM 490 (Grade Material) Grade SM 490 A

Aplicable thickness Steel Plate, steel strip in coil, section and flat

mm 200 or under

Tabel 1. Chemical composition of SM 490 A C ( %) Si (%) 50 mm or under in thickness 0.20 max 0.55 max Over 50 mm up to and incl. 200 mm in thickness 0.22 max

Mn (%) 1.60 max

P (%) 0.035 max

Tabel 2. Mechanical Properties Of SM 490 A Yield point N/mm2

Tensile strength N/mm

Thicknees of steel product (mm) 16 under

325 min

or

Over 16 up to and incl.40

Over 40 up to and incl.75

Over 75 up to and incl.100

Over 100 up to and incl.160

315 min

295 min

295 min

285 min

2

Thickness (mm) 100 or Over under 100 up to and incl.200 490-610 490-610

Elongation % 22

S (%) 0.035 max