Heat number identification on steels plates
Heat number identification on steels plates
(OP)
The following heat number / identification markings were taken off some steel plate. Can anyone help me identify it?
75A679 287993 AAR-TC 128GRB USS
I recognize the material - AAR-TC128 GRB.
I think the Mill is US Steel
I'm not sure of the meaning of the digits of the first two number groupings.
Thanks
75A679 287993 AAR-TC 128GRB USS
I recognize the material - AAR-TC128 GRB.
I think the Mill is US Steel
I'm not sure of the meaning of the digits of the first two number groupings.
Thanks





RE: Heat number identification on steels plates
Do you have a material test report by any chance? I believe you have correctly identified the mill. It is possible that the first two number groupings constitute the heat number although it is possible that the 75A679 is a reference to the 1975 edition of ASTM specification A679 for high tensile, cold drawn steel wire, although I see no reason this would appear on plate. Are these the original mill markings? Where did you procure this material from and what is the intended fabrication/service?
Regards,
RLS
RE: Heat number identification on steels plates
RE: Heat number identification on steels plates