Non-magnetic pressure drill pipe adopts self-developed low-carbon stainless steel, implements API specifications and enterprise standards, can carry out cold rolling treatment on threads, can process double shoulder threads and other special threads, and can undertake various non-standard products.

Dimensions and specifications of non-magnetic pressure-bearing drill pipe

Note: Refer to non-magnetic drill collar for mechanical properties.

magnetic properties

(Magnetic field = 1x10⁵/4biA/m)

1. Relative permeability μr<1.010

2. Magnetic field gradient: △B≤ 0.05μT