ASTM B 653/B 653M - 06 Standard Specification for Seamless and Welded Zirconium and Zirconium Alloy Welding Fittings

American Society for Testing and Materials (ASTM). Current edition approved Sept. 1, 2006. Published September 2006. Originally approved in 1979. Last previous edition approved in 2002 as B 653/B 653M – 02. 3 p. This specification covers fittings, factory made from three grades of zirconium and zirconium alloys. The term welding fittings applies to butt-welding parts such as 45 and 90° elbows, 180° returns, caps, tees, reducers, lap-joint stub ends, and other types.