Butt Welding Elbow 1.Thickness: Sch5-Sch160,STD,XS,XXS 2.Size: ... ", Weldment:26~72'' 3.Type: 45DEG 90DEG 180DEG Stainless Steel Welding Elbow Description MaterialASTM A403 WP304/304L, WP316/316L,WP321, WP347 ... with us,and create a bright future together. Incoloy 718 Welding Elbow