Drill Steel

DTH drill rod/drill pipe high pressure for quarrying, water well drilling, mining.

 

 

Products Details

Product overview导航栏 The drill pipe,the shortened form of down the hole drill pipe, is a kind of outer flat drill rod. It is mainly used in rotary percussive drilling that contains gases and liquids. Its main components include pipe (rod) body and joint.

 

Our down the hole drill pipe is manufactured based on the API standards. And according to specific requirements, we also provide this kind of drill pipe in different Chinese and American specifications.

As for its advantages, it has features of big rigidity, good sealing capacity, flat outer structure, and low torque and resistance when rotating.

 

As to the packaging, a bundle of drill pipes will be packed by one set of steel frame, and a bundle will have 9 to 40 drill pipes.

Raw Material:Hot rolled seeamless pipe,from BAO STEEL/TPCO/BAO GANG and so on,Strictly in accordance with the relevant standards inspection, through the production plant, processing plant two inspection, to ensure the quality of raw materials.   Productive Process:Upsetting-----Heat Treating----Straightening----NDT----Paint Spraying----Packing 图片-2 图片-4图片-1   Specification导航栏
  Size Nominal mass Lb/ft Calculated weight type Wall thickness
in. mm lb/ft kg/m in. mm
2 3/8 60.3 6.65 6.26 9.32 0.28 7.11
2 7/8 73 10.4 9.72 14.48 0.362 9.19
3 1/2 88.9 9.5 8.81 13.12 0.254 6.45
3 1/2 88.9 13.3 12.31 18.34 0.368 9.35
3 1/2 88.9 15.5 14.63 21.79 0.449 11.4
3 1/2 88.9 15.5 14.63 21.79 0.449 11.4
4 101.6 14 12.93 19.26 0.33 8.38
4 1/2 114.3 13.75 12.24 18.23 0.271 6.88
4 1/2 114.3 16.6 14.98 22.31 0.337 8.56
4 1/2 114.3 20 18.69 27.84 0.43 10.92
5 127 16.25 14.87 22.15 0.296 7.52
5 127 19.5 17.93 26.71 0.362 9.19
5 127 19.5 17.93 26.71 0.362 9.19
5 127 25.6 24.03 35.79 0.5 12.7
5 127 25.6 24.03 35.79 0.5 12.7
  5 1/2    139.7             21.90    19.81   29.51   0.361  9.17
    5 1/2    139.7                       24.70     22.54   33.57    0.415    10.54

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