... Tee 2.Size: 1/2"-72" 3.Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS 4.Standard: ANSI,ASME,ASTM,JIS ... P2311/23122. Size: 1/2"-72"3. Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS4. Material: ASTM A234 WPB, ST35.8 ... 's special requirement China 1/2"-72" Carbon Steel Equal Pipe Tee