ASTM B637.pdf Standard Specification for
Precipitation-Hardening Nickel Alloy Bars, Forgings, and
Forging Stock for High-Temperature Service1
This standard is issued under the fixed designation B 637; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.