| Customization: | Available |
|---|---|
| After-sales Service: | Timely After-Sale Assistance |
| Warranty: | 12 Month |
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The Non-magnetic heavy weight drill pipes are made of low carbon stainless steel.ace.to API Spec.7 and API Spec.7 and SY/T5146. All threads are phosphated,copperized or cold worked.All Connet-ions are equipped with press steel thread protectors. All threads are machined with CNCLa-thes-Double-shouldered and special threads.
Non-magnetic heavy weight drill pipe specification
| Size | OD | ID | Connerction | Body | ||||||
| Style | OD | mm Bevel diameter Pin and box |
Thickened part dimensions | |||||||
| mm | in | mm | in | mm | in | mm Center area |
mm End area |
|||
| WJZ66-65/8FH-I | 168.3 | 52/8 | 114.3 | 41/2 | 65/8FH | 209.6 | 81/4 | 195.7 | 184.2 | 176.21 |
| WJZ55-51/2FH-I | 139.7 | 51/2 | 92.1 | 35/8 | 51/2FH | 177.8 | 7 | 170.7 | 152.4 | 144.5 |
| WJZ50-NC50-I | 127 | 5 | 76.2 | 3 | NC50 | 168.3 | 65/8 | 154 | 139.7 | 130.2 |
| WJZ45-NC46-I | 114.3 | 41/2 | 71.4 | 213/16 | NC46 | 158.8 | 61/4 | 145.3 | 127 | 117.5 |
| WJZ40-NC40-I | 101.6 | 4 | 65.09 | 29/16 | NC40 | 133.35 | 51/4 | 127.4 | 101.6 | 98.43 |
| WJZ35-NC38-I | 88.9 | 31/2 | 52.39 | 21/16 | Nc38 | 120.7 | 43/4 | 116.3 | 101.6 | 92.1 |
| WJZ29-NC31-I | 73.03 | 27/8 | 50.8 | 2 | NC31 | 104.8 | 41/8 | 100.4 | 84.1 | 81.0 |
Mechanical property refer to Non-maganetic drill collars
Magnetic Properties
( Magnetic field=1 X 10³/4π A/m)
1.Average:μr<1.010
2.Magnetic field gradient:ΔB≤0.05μT
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