标准
API, API 5CT, API 5L, API 5DP, ASTM A106-2006, ASTM A53-2007, ASME B36.19M-1985, BS 1387, BS EN10025, BS EN10219, Gb/t8163, GB/T3901, GB/T9711, GB/T 3087
等级
10 #-45 #, 10 #, 20 #, 45 #, 16mn, 16mn, API J55-API P110, API J55, API K55, API N80, API L80, API P110, Q195-Q345, Q235, Q345, Q195, Q215, ST35-ST52, ST37, ST35