1 Standard: ANSI B16.9 2 Material: ASTM A234 WPB 3 Size: 1/2"-72" 4 Thickness: SCH40 80 etc 5 As per customers request ... 1.Specification: Product name:Carbon steel ... .8, ST37, WP11, 20#, 10#, Q235, Q345Or as per customer’s special requirement.Size:1/2"-72"Wall Thickness:SCH10---SCH160, STD, XS ...