ASTM material SA387
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Regarding SA387GR22CL2: everything before it is clear, but what does CL2 mean? There are several meanings online, so where can ASME provide an explanation?
In SA387GR22CL2, “CL2” denotes a Class 2 material, which means that this steel plate possesses higher tensile strength and heat resistance. In the ASME standards, one can refer to ASME Section II, Part A, which deals with material specifications; it provides detailed explanations and regulations for different categories of materials. .
There’s an explanation in SA-387. . The tensile properties vary due to differences in heat treatment. SA-387 Gr22 Class 1: Annealed 415-585MPa SA-387 Gr22 Class 2: Normalized+tempered 515-690MPa
Thank you! ! Okay, I’m checking it more carefully.