Tiêu chuẩn
API, API 5ct, API 5L, A106-2006 ASTM, A333-2005 ASTM, A53M-2007 ASTM, B36.19M-2004 ASME, A335M-2006 ASTM, DIN En 10025
Lớp
10 #-45 #, 10 #, 20 #, 45 #, A53-A369, A106(B,C), A333, A335 P11, A335 P5, A335 P9, A335 P1, A335 P23, J55-API API p110, API J55, API K55, API N80, API p110, ST35-ST52, St52