ASTM A53 Carbon steel seamless pipe 1)OD: 1/4''-48'' 2)WT: SCH5-SCH160 3)Standard:A106 GRB ... part and so on. StandardGradeSpecificationsGB10#,20#,45#,16MnO.D.:1/2"-20"W.T.:SCH10-XXSLength:5-12mBSQ195,Q235,Q215 ... ,Q345ASTMA283-D,A135-A,A53-A,A106-A,A179-C,A214-C,A192,A226,A315-B,A53 ... -B,A178-C,A210-A-1,A210-CDINSt33,St37,St37-2,St35.8,St35.4,St42 ...