Out Diameter: 1/2â?³ -24â?³ ( 21.3-610mm) Wall Thickness: 2-20mm Length: 5.8m/ 6m/ 11.8m/ 12m or any fixed length as per customer request Standard: API 5L, ASTM A53, BS1387, EN10219, EN10210, SY/T5768 -2006, GB/T3091 -2008, GB/T9711 -1, JIS G3444, JIS G3452 Steel Grade: S235, S275, S355, A53, Q195, Q235, Q345, L245, L290, Gr.B, X42-70 etc End: Plain, Beveled Surface Treatment: light-oiled, black painting , hot galvanizing, sand blasting, FBE, 2PE, 3PE etc Packing: in bundles with steel strips or in bulk as per the loading requirements Applications: civil building and construction, petrochemical sector, light market, fluid transferring sector, mechanical components. Feel free to contact us if any further questions,we will serve you as soon as possible.