Tiêu chuẩn
Api, API 5L, A106-2006 ASTM, A53-2007 ASTM, A335-2006 ASTM, A333-2005 ASTM, A179-1990 ASTM, A53M-2007 ASTM, A213M-2001 ANSI, A335M-2006 ASTM, Ban en10025, Ban en10219, DIN 1629/3, DIN En 10025, GB/T 8163-1999, G3456-2004 JIS
Lớp
10 #-45 #, 10 #, 20 #, 45 #, 16mn, 16mn, A53-A369, A53(A,B), A106(B,C), A333, A192, A333 gr6, J55-API API p110, API L80, MO, 16mo3, Q195-Q345, Q235, Q345, ST35-ST52, St52, Stpg42, Stpg42