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Bobi Petroleum Drilling Tool (China) Co., Ltd

Bobi Petroleum Drilling Tool (China) Co., Ltd


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None-Magnetic Drill Collar
Casing, Tubing & Drill Pipes


None-Magnetic Drill Collar
NON-Magnetic Drill Collars are made from stainless alloy steel by combining a proprietary chemical analysis and a hammer forging process. The material is resistant to stress corrosion cracking, with high mechanical properties, low magnetic permeability, excellent machine ability and no tendency to galling.

Magnetic property:
When magnetic field intensity is 1x105/4?A/m,relative magnetic conductance of non-magnetic Drill Collar will be less than 1.01. Magnet induction intension grads at distance of 100mm between magnetic dill collars is less than 0.05T
Drilling Equipment Casing, Tubing & Drill Pipes
Variation #1 PN
     Qty
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