![]() ![]() Specific materials are probably best referred to by ANSI designations where cold rolled, hot rolled and other designations are built into the number codes. The A code is for steel, cast iron, stainless and any number of related things including tin plating of steel.ĭon't try to make too much of the numbers because as time went on and new Standards were needed they were probably assigned in an area near existing similar or "like' standards. An E standard would refer to an Engineering Standard like E1417 fir NDT - LP testing or E1742 for Radiographic Examination. In ASTM the B26 is for aluminum alloys as is the B686. However, within the ASTM standards, these terms were adopted and used to identify a particular metal within a metal standard and used without any strict definition.I think that you're mistaking ASTM Standards for a material code. Within the steel industry, the terms Grade, Type, and Class are generally defined as follows: Grade is used to describe chemical composition Type is used to define the deoxidation practice and Class is used to indicate other characteristics such as strength level or surface finish. ![]()
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