Wall Thickness: SCH20, SGP, STD, SCH40, SCH80, SCH160 Standard: a)ANSI: ASME B16.9, ASME B16.28, MSS-SP-75 b)DIN: DIN 2605, DIN 2615, DIN 2616, DIN2617 and DIN 28011 c)JIS: JIS B 2313 d)EN: EN 10253-1 EN 10253-2 Material: a)Carbon Steel: ASTM A234 WPB, WPC; ASTM A420 WPL9, WPL3, WPL6 b)Alloy Steel: ASTM A234 WP1, WP12, WP11, WP22, WP5, WP9, WP91 c)Stainless Steel: ASTM A403 WP304/304L, WP316/316L, WP321, WP347 Surface treatment: Transparent oil, rust-proof black oil or hot galvanizing Special design available.
