Non-magnetic Drill collar

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Non-magnetic Drill collar
Posting date : Jan 14, 2014
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27-
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It’s made from N1310 low carbon alloy-steel, refined and forged by strict chemical analysis to reach its mechanical properties. It has favorable low-permeability, high-strength mechanical properties, great splitting properties of corrosion resistance and excellent abrasion performance. When MPS=1×105/4π A/m, its relatively magnetic permeabilityμr≤1.010 When any distance by the inner hole is 100mm, its field gradient≤0.05μT  Magnetic permeability (MPS=1×1×105/4π Nm)  Max: 1.010  Average value: μr≤1.005  Field gradient (hot spot)  Max: B≤0.05

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