... 36" wall thickness:Sch10 up to STD/XS Product Elbow/pipe elbowSize 1/2-36 inchMaterialWPB A234, or according to customer ... Butt-welded seamless carbon steel pipe elbow.Wall thicknessSCH10, SCH20, SCH30, SCH40, STD, SCHXS, SCH80, SCH120, SCH160, SCH XXS.Standard American standard ... mechanical processing machines of elbows push-type forming and chamfering. sch160 pipe fittings