A 131 ABS Grade A
|Element||Chemical CompositionA (heat analysis), % max unless otherwise specified|
Deoxidation and Thickness (t), in. [mm]
Killed or Semi-Killed t ≤ 2.0 in. [50 mm], Killed t ≥ 2.0 in. [50 mm]
|Mn, min||2.5 x C|
|C + Mn/6||0.40|
AIntentionally added elements are to be determined and reported.
CA maximum carbon content of 0.23% is acceptable for Grade A shapes and bars.
EThe content of nickel, chromium, molybdenum, and copper are to be determined and reported. When the amount does not exceed 0.02%, these elements may be reported as ≤ 0.02%.
|Yeild Point, min|
|Elongation in 8 in. [200 mm]A,B, min %||Elongation in 2 in. [50 mm]B,C, min %|
|A, B, D, E||58 TO 75 [400 to 520]||34 ||21||24|
DFor Grade A shapes and bars, the upper limit of tensile strength may be 80 ksi [550 MPa].