American Society for Testing and Materials (ASTM). Current edition approved Dec. 1, 2006. Published January 2007. Originally approved in 1991. Last previous edition approved in 2002 as B 814 – 02. 3 p. This specification covers nickel-chromium-iron-molybdenum-tungsten alloy UNS N06920 in the form of rolled plate, sheet, and strip for general corrosion service.