... 24"Wall thickness:Sch5S-Sch160, XS,XXSStandards:ANSI, ASTM,API,DIN, JIS, BS, ISO, GB, SH ... , AND HG etc MaterialCarbon Steel: ASTM A53/A106,ASTM A179,API 5L X42/52/60Surface treatment:Black ... , hot galvanized,3PE coating, epoxy coating.PackingPlastic :pipe cap, plastic bag, steel strips bundledApplication:Petroleum, chemical ... please feel free to contact me. ASTM A106A53 Gr.B seamless carbon steel pipe