Integral Heavy Weight Drill Pipe

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Integral Heavy Weight Drill Pipe
Posting date : Aug 12, 2013
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27-
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The tool joints are made of AISI 4145H premium alloy steel fully Q&T with the IPSEN furnace . All the joints are inspected by Florescence Magnetic Particle and the Ultrasonic method. The pipe body goes under very serious inspection in conformance with API 5D. The welding between the drill pipe an tool joint is accomplished with the Friction Welding machine, the welding process is swift & steady under computer control. The weld zone is quenched and tempered through the induction process which is computer controlled in real time. 1. High precision in size and shape 2. Good low temperature toughness 3. Excellent comprehensive mechanical properties 4. High connection strength and sealability 5. Large inside diameter of tool joint 6. High torque resistance 7. High fatigue strength and long fatigue life

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