| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1year |
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The Non-magnetic drill collar is made of a kind of low carbon high chrome-manganese alloy steel,material normally is P530 or P550, which is refined after strict chemical composition ratio and forged to achieve its mechanical properties, this kind of drill collar has superb mechanical properties of low permeability and high strength. Mainly used for downhole drilling.
Our Strict control of chemical composition and special forging process guarantee the excellent mechanical properties of our non magnetic drill collar.
| Connection Type | OD | ID | ||
| mm | in | mm | in | |
| NC23-31 | 79.4 | 3 1/8 | 31.8 | 1 1/2 |
| NC26-35(2 3/8 IF) | 88.9 | 3 1/2 | 38.1 | 1 1/2 |
| NC31-41(2 7/8 IF) | 104.8 | 4 1/8 | 50.8 | 2 |
| NC35-47 | 120.6 | 4 3/4 | 50.8 | 2 |
| NC38-50(31/2IF) | 127 | 5 | 57.2 | 2 1/4 |
| NC44-60 | 152.4 | 6 | 57.2 | 2 1/4 |
| NC44-60 | 152.4 | 6 | 71.4 | 2 13/16 |
| NC44-62 | 158.8 | 6 1/4 | 57.2 | 2 1/4 |
| NC44-62(4IF) | 158.8 | 6 1/2 | 71.4 | 2 13/16 |
| NC44-65(4IF) | 165.1 | 6 1/2 | 57.2 | 2 1/4 |
| NC44-65(4IF) | 165.1 | 6 1/2 | 71.4 | 2 13/16 |
| NC44-67(4IF) | 171.4 | 6 3/4 | 57.2 | 2 1/4 |
| NC50-672(41/2IF) | 171.4 | 6 3/4 | 71.4 | 2 13/16 |
| NC50-70(41/2IF) | 177.8 | 7 | 57.2 | 2 1/4 |
| NC50-70(41/2IF) | 177.8 | 7 | 71.4 | 2 13/16 |
| NC50-72(41/2IF) | 184.2 | 7 1/4 | 71.4 | 2 13/16 |
| NC56-77 | 196.8 | 7 3/4 | 71.4 | 2 13/16 |
| NC56-80 | 203.2 | 8 | 71.4 | 2 13/16 |
| 6 5/8 REG | 209.6 | 8 1/4 | 71.4 | 2 13/16 |
| NC61-90 | 228.6 | 9 | 71.4 | 2 13/16 |
| 7 5/8 REG | 241.3 | 9 1/2 | 76.2 | 3 |
| NC70-97 | 247.6 | 9 3/4 | 76.2 | 3 |
| NC70-100 | 254 | 10 | 76.2 | 3 |
| 8 5/8 REG | 279.4 | 11 | 76.2 | 3 |
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