1.1 ,This specification covers a variety of copper base powder metallurgy (PM) structural materials, including those used in applications where high electrical conductivity is required. It includes a classification system, or material designation code. With the classification system, this specification includes chemical composition and minimum tensile yield strength.
Note 1: ,Paragraphs 6.1 and 8.1 govern material classification by the designation code. The classification system is explained in the Appendix.