Tiêu chuẩn
API, API 5L, A106-2006 ASTM, A53-2007 ASTM, A671-2006 ASTM, A672-2006 ASTM, A252-1998 ASTM, A660-1996 ASTM, Ban en10025, Ban en10219, Ban en10217, GB/t3901, GB/t9711, G3445-2006 JIS, G3444-2006 JIS
Lớp
16mn, 16mn, A53-A369, A53(A,B), Q195-Q345, Q235, Q345, ST35-ST52, St52