Heavy Weight Drill Pipe

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Heavy Weight Drill Pipe
Posting date : Jul 18, 2011
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84-
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Integral or Weld Heavy Weight Drill Pipe Standard: API Spec 7 Specification: OD 3 1/2”, 4 1/2”, 5”, 5 1/2” Material: AISI 4145H Alloy Steel and Non-magnetic material Type: Integral and Friction welded Usage: HWDP is the transition zone between drill collar and drill pipe. It can not only reduce stress-formation in the connection of drill collar and drill pipe, but also reduce the wear on OD.

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