American Society for Testing and Materials (ASTM). Current edition approved Dec. 1, 2006. Published January 2007. Originally approved in 1966. Last previous edition approved in 2000 as B 434 – 00. 3 p. This specification2 covers nickel-molybdenum-chromium-iron alloys (UNS N10003 and UNS N10242) plate, sheet, and strip for use in general corrosive service.