표준
API, API 5CT, API 5L, API 5DP, ASTM A213-2001, ASTM A1020-2002, ASTM A179-1990, ASTM A254-1997, ASTM A199, BS 1387, BS 1139, DIN 1626, DIN 1629/3, GB 13296-2007, GB 18248-2000, JIS C8305-1999
학년
10 #-45 #, 10 #, 20 #, 45 #, A53-A369, A192, A200, A199, API J55-API P110, API J55, Q195-Q345, Q235, Q345, Q195, Q215, ST35-ST52, ST42, ST35, STBA20-STBA26, STBA20, STPA22-STPA26, STPA22