American Society for Testing and Materials (ASTM). Current edition approved Sept. 1, 2007. Published October 2007. Originally approved in 1983. Last previous edition approved in 2005 as A 814/A 814M – 05. 6 p. This specification covers two classes of flanged and cold-bending quality cold-worked straight-seam single or double welded austenitic steel pipe intended for hightemperature and general corrosive services.