Pipe fitting Elbow, tee, reducer, cap, bend Material: Alloy steel Standard: ASME/ANSI Size: 1/2"-60", Sch10s-Schxxs Steel butt weld pipe fittings1. Specifications:Material: Carbon steel, Alloy steel, Stainless steelCarbon steel: ASTM A234 WPBAlloy steel: ASTM A234 WP11, ASTM A234 WP12, ASTM A234 WP22, ASTM A234 WP5, ASTM A234 WP9, ASTM A234 WP91 Stainless steel: ASTM A403 WP304, ASTM A403 WP304L, ...