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Drill pipes
Advanced friction welding production line of drill pipe
Advanced upsetting and thermal treatment line
800T upsetter to ensure the size of thickened pipe-end to meet API SPEC-5DP requirements.
Full length pipe heater, quenching unit and tempering stove to ensure the mechanical property of pipe body.
Automatic co-alignment unit with 6 rollers and hydraulic co-alignment for pipe body to ensure straightness and coaxial.
Standard sizes for drill pipes
Size | Weight Designation | Calculated Plain-End Weight | Outside Diameter | Wall Thickness | Grade | Upset Ends. For Weld-on Tools Joint | |||
Lb/ft | Kg/m | In | Mm | In | Mm | ||||
2 3/8 | 6.65 | 6.27 | 9.33 | 2.375 | 60.3 | 0.280 | 7.11 | E,X,G,S | EU |
2 7/8 | 10.40 | 9.72 | 14.47 | 2.875 | 73.0 | 0.362 | 9.19 | E,X,G,S | IU or EU |
3 1/2 | 9.50 | 8.81 | 13.12 | 3.500 | 88.9 | 0.254 | 6.45 | E | IU or EU |
3 1/2 | 13.30 | 12.32 | 18.34 | 3.500 | 88.9 | 0.368 | 9.35 | E,X,G,S | IU or EU |
3 1/2 | 15.50 | 14.64 | 21.79 | 3.500 | 88.9 | 0.449 | 11.40 | E | IU or EU |
3 1/2 | 15.50 | 14.64 | 21.79 | 3.500 | 88.9 | 0.449 | 11.40 | X,G,S | EU or IEU |
4 | 14.00 | 12.95 | 19.27 | 4.000 | 101.6 | 0.330 | 8.38 | E,X,G,S | IU or EU |
4 1/2 | 13.75 | 12.25 | 18.23 | 4.500 | 114.3 | 0.271 | 6.88 | E | IU or EU |
4 1/2 | 16.60 | 15.00 | 22.32 | 4.500 | 114.3 | 0.337 | 8.56 | E,X,G,S | EU or IEU |
4 1/2 | 20.00 | 18.71 | 27.84 | 4.500 | 114.3 | 0.430 | 10.92 | E,X,G,S | EU or IEU |
5 | 16.25 | 14.88 | 22.16 | 5.000 | 127.0 | 0.296 | 7.52 | X,G,S | IU |
5 | 19.50 | ||||||||
Drill Pipe