... pipe fittings: Size: 1/2"~72" Thickness:SCH20,SGP,STD,SCH40,SCH80,SCH160 Standard:ANSI B16.9/16.28. Product ... Name: Hot steel pipe fitting1. Type; elbow , Tee , reducer , cap 2, Size: 1/2"~72" ... :ASTM , A234,WPB,Carbon steel5.Thick ness:SCH20, SGP,STD,SCH40,SCH80,SCH1606.Surface Treatment:Blacking painting,black varnish,transparent ... of our product photos for your reference: steel elbow