ASTM B 663 - 94 (Reapproved 2006) Standard Specification for Silver-Tungsten Carbide Electrical Contact Material

American Society for Testing and Materials (ASTM). Current edition approved June 1, 2006. Published June 2006. Originally approved in 1979. Last previous edition approved in 2000 as B 663 – 94 (2000). 4 p. This specification covers electrical contact components made from silver-tungsten carbide by powder metallurgical procedures.
This specification covers compositions within the silver-tungsten carbide system normally specified by users of contacts.