... to 36" wall thickness:SCH10 to SCHXXS Product Elbow,pipe fittingSize 1/2-36 inchMaterialWPB A234, or according to ... customer s requirement.Type Butt-welded seamless carbon steel pipe elbow.Wall thicknessSCH10, SCH20, SCH30, SCH40, STD, SCHXS, ... also produce kinds of elbows, tees, reducers and mechanical processing machines of elbows push-type forming and chamfering. pipe fitting dimension 36"