ASTM A 320/A 320M - 11a Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service

American Society for Testing and Materials (ASTM). Current edition approved Nov. 1, 2011. Published December 2011. Originally approved in 1948. Last previous edition approved in 2011 as A320/A320M–11. 8 p. This specification covers alloy steel bolting for pressure vessels, valves, flanges, and fittings for low-temperature service. See Specification A962/A962M for the definition of bolting. The bars shall be hot-wrought and may be further processed by centerless grinding or by cold drawing. Austenitic stainless steel may be solution annealed or annealed and strain-hardened. When strain hardened austenitic stainless steel is ordered, the purchaser should take special care to ensure that Appendix X1 is thoroughly understood.