American Society for Testing and Materials (ASTM). Current edition approved Dec. 1, 2006. Published December 2006. Originally approved in 1977. Last previous edition approved in 2002 as B 621 – 02. 3 p. This specification covers nickel-iron chromium-molybdenum alloy (UNS N08320)* rod for use in general corrosive service.
The following products are covered under this specification:
1 Rods 5⁄16 to 3⁄4 in. (7.94 to 19.05 mm) excl in diameter, hot or cold finished, solution annealed and pickled or mechanically descaled.
2 Rods 3⁄4 to 31⁄2 in. (19.05 to 88.9 mm) incl in diameter, hot or cold finished, solution annealed, ground or turned.