Specifications

1).API Spec.7 standard
2).Material:P550
3).Size: D 3 1/8" ~ 11" Length: 3m~9.5m
4). Packing: see below photo

Non-magnetic drill collar

 

Materials of the Non-magnetic drill collar are 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.