Size: 1/2"NB TO 48" TO IN Schedule: SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS TYPE: SEAMLESS /ERW / welded / Fabricated MATERIALS: Stainless Steel : ASTMA403 W2P GR.304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L Carbon Stell: ASTM A 234 WPB, WPBW, WPHY 42, WPHY 46, WPHY 52, WPH60, WPHY 65, WPHY 70. Low Temparature Carbon Steel : ASTM A 234 WPL3 / A420WPL6 Alloy Steel : ASTM/ ASME A/SA 234 GR.WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91 Duplex ASTM A 815, UNSNO 31803, S 32205. Nickel Alloy VALUE ADDED SERVICE: Hot Dip Galvanizing Epoxy Coating