What’s A653 SS steel ?

ASK:

What's A653 SS steel ?

ANSWER:A653 SS is a steel grade in American standard ASTM A653/A653M, A653 SS is structural quality steel material, which has eight grades: Grade 230, Grade 255, grade 275, grade 340, grade 380, grade 410, grade 480, and grade 550, amount of the above grades, Grade 340 has class 1,2,3,4, and grade 550 has class 1,2,3.

ASTM A653/A653M specification covers steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated (galvannealed) by the hot-dip process in coils and cut lengths.

A653 SS material steel have coil, strip, sheet condition, thickness is from 0.2mm-3mm.

A653 SS steel Coil/strip/sheet surface quality:
A (As coated surface), B (Improved surface),C (Best quality surface)

A653 SS steel Coil/strip/sheet surface treatment:
Chemical treated or not chemical treated, Oiled or not oiled, Phosphatized or not Phosphatized.

A653 SS steel Coil/strip/sheet coating mass:
Pure Zinc coating: G01(Z001), G30(Z90), G40(Z120), G60(Z180), G90(Z275), G100(Z305), G115(Z350), G140(Z450), G165(Z500), G185(Z550), G210(Z600), G235(Z700), G300(Z900), G360(Z1100)
Alloy Zinc+Fe: A01(ZF001), A25(ZF75), A40(ZF120), A60(ZF180)

A653 SS steel yield strength :
Grade 230 should be not less than 230MPa
Grade 255 should be not less than 255MPa
Grade 275 should be not less than 275MPa
Grade 340 should be not less than 340MPa
Grade 380 should be not less than 380MPa
Grade 410 should be not less than 410MPa
Grade 480 should be not less than 480MPa
Grade 550 should be not less than 550MPa

A653 SS steel tensile strength :
Grade 230 should be not less than 310MPa
Grade 255 should be not less than 360MPa
Grade 275 should be not less than 380MPa
Grade 340 class 1 should be not less than 450MPa
Class 3 should be not less than 480MPa
Class 4 should be not less than 410MPa
Grade 380 should be not less than 480MPa
Grade 410 should be not less than 480MPa
Grade 480 should be not less than 550MPa
Grade 550 should be not less than 570MPa
Elongation in 50mm
Grade 230 should be not less than 20%
Grade 255 should be not less than 18%
Grade 275 should be not less than 16%
Grade 340 should be not less than 12%
Grade 380 should be not less than 11%
Grade 410 should be not less than 10%
Grade 480 should be not less than 9%