มาตรฐาน
A106-2006 ASTM, A53-2007 ASTM, A335-2006 ASTM, 1387 BS, 1139 BS, BS En 39, EN10219 BS, GB/T 2001 3091, GB/ T8162, GB/ t8163, G3456-2004 JIS, G3446-2004 JIS, API, 5L API
เกรด
10 #-45 #, #20, 45 #, A53-A369, A53(A,B), A106(B,C), Q195-Q345, Q235, Q345, Q195, Q215, ST35-ST52, ST37, ST52, ST35.8, STBA20-STBA26, STBA22, 16mn, 16mn, STPA22-STPA26, STPA22, STB35-STB42, STB35