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Non-magnetic drill collar
Category:
The non-magnetic drill collar adopts self-developed low-carbon stainless steel, implements API specification and SY/T5144 standard, can carry out cold rolling treatment on threads, and can process double shoulder threads and other special threads.
Product Introduction
The non-magnetic drill collar adopts self-developed low-carbon stainless steel, implements API specification and SY/T5144 standard, can carry out cold rolling treatment on threads, and can process double shoulder threads and other special threads.

Dimensions of non-magnetic collar

Main Tolerance Dimensions of Non-Magnetic Drill Collars

Mechanical properties of non-magnetic drill collars

non-magnetic drill collar
magnetic properties
(Magnetic field = 1x105/4biA/m)
1. Relative permeability μr<1.010
2. Magnetic field gradient: △B≤ 0.05μT
Production strength
Key words:
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