סטנדרטי
API, API 5L, ASTM A106-2006, ASTM A53-2007, ASTM A252-1998, ASME B36.10M-2004, BS 1387, BS EN10025, BS EN 39, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, JIS G3444-2006
כיתה
A53-A369, A53(A,B), A106(B,C), A250, Q195-Q345, Q235, Q345, Q195, Q215