Standard
API, API 5CT, API 5L, API 5DP, ASTM A106-2006, ASTM A199, GB/T8162, Gb/t8163, JIS G3463-2006, DIN 1626, BS 1387
Grade
10#-45#, 20#, 45#, 16mn, 16mn, A53-A369, A333, A335 P5, A335 P9, A335 P11, A335 P1, Cr-Mo alloy, 15crmo, 12CrMo, 30CrMo, 34CrMo4, ST35-ST52, ST52