ASTM seamless carbon steel pipe Outer diameter:1/2"-36" Wall thickness:SCH5S-XXS Standard: ASTM API AISI JB DIN ect Product nameASTM seamless carbon steel pipeSpecificationO.D.: 25-350mmW.T.: 4-40mmLength5.8m 6m 12m or as customer demandStandardGB DIN ASTM JIS DIN and so on Material10#, 20#, 35#, 45#, 16Mn, 32Mn, Q235,K55,Q345,A106Gr.B/A A53,API 5L PSL1,API 5LAPI 5CT,304 304L 316,316L,ect ...