American Society for Testing and Materials (ASTM). Current edition approved May 1, 2007. Published July 2007. Originally approved in 1995. Last previous edition approved in 2001 as A 929/A 929M - 01. 4 p. This specification covers steel sheet used in the manufacture of corrugated steel pipe for storm sewers, culverts, drains, and similar uses. The sheet is metallic coated by the hot-dip process. Material for this use is furnished in coils, flat in cut lengths, and corrugated in cut lengths. Many metallic coated materials are covered in this material specification.