... .Wall Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS 4.Standard: ANSI,ASME,ASTM,JIS,DIN Carbon Steel Tee1. Standard: ANSI B16.9 / 16 ... Thickness: SCH20,STD,SCH40,SCH80,SCH160,XXS4. Material: ASTM A234 WPB, ST35.8, ST37, WP11, 20#, Q2355. Surface treatment: black painting ... or as customer's special requirement China 1/2"-72" Carbon Steel Equal Pipe Tee