1.ASTM A106/A53 GR.B carbon steel pipe 2.Outer diameter:1/2"-24" 3.Wall thickness:SCH5S-XXS 4.API,ISO Carbon Steel Pipe10#,20#,45#,16Mn, ASTM A106 Gr.B, ASTM A53 Gr.B, St 37, St 42, St 52, Q 235, Q 195, Q345, 27SiMn SpecificationsChina StandardSteel GradeStandardseamless steel tubesand pipesfor structural purposeGB/T8162-199910, 20, 35, 45, 40Mn2, 45Mn2, 27SiMn, 20Cr, 40Cr, 20CrMo, 35CrMo, ...