NC46 Drilling Crossover Sub 6 5/8" Reg AISI 4145H for Water Well Tricone Drill Bit Connection
This professional drilling crossover sub is engineered to connect water well tricone drill bits with drill pipes, ensuring reliable performance in demanding drilling operations.
The crossover sub serves as a critical connection component in drilling operations, designed to interface between upper and lower drill tools with different connector specifications. It also functions as a protective element for other tooling within the drill stem (saver sub) or facilitates air delivery to the bit face (bit sub).
- Length Range: 6" to 28" (measured shoulder to shoulder)
- Increments: 2-inch intervals
- Material Options: AISI 4145H, AISI 4145H Mod, AISI 4340, AISI 4140-4142, Non-magnetic materials
- Surface Treatment: Phosphate-coated or copper plated for enhanced corrosion resistance
- Type A: Pin (male) × Box (female)
- Type B: Pin (male) × Pin (male)
- Type C: Box (female) × Box (female)
| Sub Type | Upper Connection | Lower Connection | Type |
|---|---|---|---|
| Kelly Cross-over Sub | Kelly | Drill Pipe | A or B |
| Drill Pipe Cross-over Sub | Drill Pipe | Drill Pipe | A or B |
| Interim Cross-over Sub | Drill Pipe | Drill Collar | A or B |
| Drill Collar Cross-over Sub | Drill Collar | Drill Collar | A or B |
| Drill Bit Cross-over Sub | Drill Collar | Drill Bit | A or B |
| Swivel Cross-over Sub | Swivel Lower Sub | Kelly | C |
| Fishing Cross-over Sub | Kelly | Drill Pipe | C |
| O.D. Range | Min. Yield Strength | Min. Tensile Strength | Elongation Min. | Min. Brinell Hardness |
|---|---|---|---|---|
| 3 1/2" THRU 6 7/8" | 760 MPa | 965 MPa | 13% | 285 |
| 7" THRU 10" | 690 MPa | 930 MPa | 13% | 277 |
Crossover subs can be fully customized according to customer design specifications and application requirements.
Address: North Two Road, Dongying City, Shandong Province, China
Mobile/WhatsApp/WeChat: +86 13475294399
Email: christal@oilmancn.com
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