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Special Grades

Special Grades of Stainless Steel - Where to Find Them

This article provides information on special grades. It is not complete, but it is planned for more data to be added soon.

Chemical compositions of AISI (ASTM/ASME) and UNS heat resisting stainless steel grades

Most ASTM and ASME standards list the steel grades by their UNS (Unified Numbering system) numbers but also make reference, where appropriate to the more general AISI (American Iron and Steel Institute) grade designations. This article explains more about the designations and provides specific grade compositional information.

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