Detailed Product Description

Non-magnetic drill collars are manufactured from chrome manganese, low carbon obtained by combining a proprietary chemical analysis and a rotary hammer process. The material is resistant to stress corrosion cracking, with high machine ability and no tendency to galling.

1.Magnetic permeability (when MPS=1105/4 Nm) relative max ur: 1.010.

2.Magnetic field gradient (hot spots) max: B 0.05 micro tesla/100mm.