Butt-welding Fittings Standard: A/SA403. A/SA774, A/SA 234, EN10253-4Materials: 304/L. 316/L. Duplex. WPB Size : Stainless steel: Seamless from 1/2” up 12”; Welded (One seam): 1/2”-12”; LOD: 14”-24” (WPWX)Carbon steel: Seamless only, up to 24”Wall thickness: Sch5S–Sch160S Category: 45/90/180 Elbow, Equal & reducing Tee, Con. & Ecc. Reducer, Cap, Stub Ends