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Friction welding drill pipe is according with API Safety Products & Supplies Spec 5DP specification.The steel grades are E75, X95, G105 and S135 that are after partly or overall heat treatment. The adapter part adopts thermal refining to superior alloy steel 4137H that's after thread hardening treatment and phosphating to better antiseize. It also can be produced upon customers' requirements.
The specification list of drill pipe (Friction welding) Drill Pipe DiameterUpset TypeVariable-Frequency Drive RSCSteel GradeWall ThicknessExternal Diameter of Tool JointInternal Diameter of Male ThreadLengthmmin60.32 3/8EUNC26G1057.11 mm85.7 mm44.5 mm9600mm732 7/8EUNC31G1059.19 mm104.8 mm50.8 mm9600mmS135111.1 mm41.3 mm9600mm88.93 1/2EUNC38G1059.35 mm127.0 mm61.9 mm9600mmS135127.0 mm54.0 mm9600mm101.64IUNC40G1058.38 mm139.7 mm61.9 mm9600mmS135139.7 mm50.8 mm9600mm114.34 1/2IEUNC46G1058.56 mm158.8 mm76.2 mm9600mmS135158.8 mm69.9 mm9600mm1275IEUNC50G1059.19 mm168.3 mm82.6 mm9600mmS135168.3 mm69.9 mm9600mm139.75 1/2IEU5 1/2FHG1059.17 mm184.2 mm88.9 mm9600mmS135190.5 mm76.2 mm9600mm
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