Standard
API, API 5L, JIS G3461-2005, JIS G3455-2005, DIN 17175, ASTM A213-2001, ASTM A335-2006, GB 5310-1995, BS 1387
Grade
16mn, 16mn, ST35-ST52, ST37, ST35.8, ST35.4, Cr-Mo alloy, 15crmo, 12CrMo, 34CrMo4, 35CRMO4, 30CrMo, A53-A369, A213, A250, A199, 10#-45#, 45#