ASTM A53, ASME B36.10M -1996. Thickness STD, SCH40, SCH60, XS, SCH80, SCH160, XXS
ASTM A106, ASME B36.10M -1996. Thickness STD, SCH40, SCH60, XS, SCH80, SCH160, XXS
API 5L GR.B GR.B, ASME B36.10M -1996. Thickness STD, SCH40, SCH60, XS, SCH80, SCH160, XXS