ASTM A 181A 181M - 06 Standard Specification for Carbon Steel Forgings, for General-Purpose Piping

American Society for Testing and Materials (ASTM). Current edition approved Sept. 1, 2006. Published September 2006. Originally approved in 1935. Last previous edition approved in 2001 as A 181/A 181M – 01. 3 p. This specification covers nonstandard as-forged fittings, valve components, and parts for general service. Forgings made to this specification are limited to a maximum weight of 10 000 lb [4540 kg]. Larger forgings may be ordered to Specification A 266/A 266M.