ASTM A312/A312M-16 was SUPERSEDED by ASTM A312/A312M-19.Here is the info of ASTM A312/A312M-16. Referenced Documents ASTM A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes ASTM A262 Practices for Detecting...