Henan Zhongyuan Heavy Forging Co., Ltd -

Henan Zhongyuan Heavy Forging Co., Ltd

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drill collar
Specification: Different sizes of drill collar we produce are from 3 1/2" to 11
Detail: Based on API Spec.7,ZYZXDYs drill collars are made of 4145H MOD chromium molybdenum alloy steel. All threads machined with CNC Lathes Double shoulderd,including some special threads.We inspect all our drill collars to comply w...

stabilizer
Specification: Integral blade stabilizer ZYZXDYmake are from AISI 4145H MOD for
Detail: OD of Bits:6"--28" Mechanical properties: Yield Strength:110KSI Min (0.2% offset) Tensile Strength 140KSI Min Elongation 13% Min Reduction of Area 45% Min I***ct Strength(Charpy V) 40 Min Hardness ...


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