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  • non-magnetic heavy weight drill pipe

Non-magnetic Heavy Weight Drill Pipe

The non-magnetic heavy weight drill pipe is made from low carbon stainless steel.acc to API Spec.7 and SY/T5144.

■ Precauciones

The non-magnetic heavy weight drill pipe is made from low carbon stainless steel.acc to API Spec. 7 and SY/T5144.All threads are phoshated, copperized or cold worked. All connections are equipped with pressed steel thread protectors. All threads are machined with CNC Lathes-Double-shouldered and special threads.

Main Technical Parameters

◆Non-magnetic Heavy Weight Drill Pipe Size

Size OD ID Connection Body
mm in mm in Style OD Bevel diameter pin and box mm Upset
mm in Center area mm End area mm
WJZ66 -6 5/8 FH-I 168.3 6 5/8 114.3 4 1/2 6 5/8FH 209.6 8 1/4 195.0 184.2 176.21
WJZ55 -5 1/2FH-I 139.7 5 1/2 92.1 3 5/8 5 1/2FH 177.8 7 170.7 152.4 144.5
WJZ50- NC50-I 127.0 5 76.2 3 NC50 168.3 6 5/8 154.0 139.7 130.2
WJZ45- NC46-I 114.3 4 1/2 71.4 2 13/16 NC46 158.8 6 1/4 145.3 127.0 117.5
WJZ35- NC38-I 88.9 3 1/2 52.39 2 1/16 NC38 120.7 4 3/4 116.3 101.6 92.1
WJZ29- NC31-I 73.03 2 7/8 50.8 2 NC31 104.8 4 1/8 100.4 84.1 81.0

Heavy Weight Drill Pipe Note:
Mechanical properties referring to those of non-magnetic drill collar
Magnetic properties
MPS=1×105/4πA /m
Average:  Ur<1.010
Magnetic field gradient:  △B≤0.05 µ T