Pipes Carbon Steel, Stainless Steel, Seamless, ErwWall Thickness: SCH10 ~SCH-XXS Design Standard: ASTM/ANSI/ASME, B16.10 API 5L B16.10 Grade: ASTM A106 Gr. B, A53 Gr. B, API 5L Gr. B, X42, X52, X60 ASTM: A312 TP-304, 304L 316, 316L ASTM: A333Gr.6