ASTM A312/A312M-16 was SUPERSEDED  by ASTM A312/A312M-19.Here is the info of ASTM A312/A312M-16.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 Susceptibility to Intergranular Attack in Austenitic Stainless Steels
ASTM A370 Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
ASTM A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
ASTM E112 Test Methods for Determining Average Grain Size
ASTME381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
This specification2 covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.
Optional supplementary requirements are provided for pipe where a greater degree of testing is desired. These supplementary requirements call for additional tests to be made and, when desired, it is permitted to specify in the order one or more of these supplementary requirements.
The name of this ASTM standard is Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes.
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