Product Overview
Our Carbon Steel Drill Rod Joint are precision-made using investment casting technology, which can produce complex structures and high-precision products. At the same time, we have CNC machining centers to meet your high-precision machining needs. A variety of carbon steel materials are available for you to choose from, which can achieve small batches and multiple varieties of customization.Our Carbon Steel Drill Rod Joint are precision-made using investment casting technology, which can produce complex structures and high-precision products. At the same time, we have CNC machining centers to meet your high-precision machining needs. A variety of carbon steel materials are available for you to choose from, which can achieve small batches and multiple varieties of customization.
Advantages
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Advantages |
Technical Support |
Customer Value |
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Extreme sealing |
Silica sol casting achieves thread profile accuracy of ±0.1mm, with mating surface Ra ≤3.2μm. |
Eliminates mud leaks, reducing maintenance costs by 30% |
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Resistant to hydrogen sulfide corrosion |
Customized low-carbon alloy steel (C ≤ 0.25%) and rare earth deoxidation process, achieving a critical stress value of ≥85% σs in H₂S environments. |
Meets NACE MR0175 standards for safe drilling in sour formations |
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High torque capacity |
One-piece molding eliminates welds, resulting in a torsional strength of ≥1100 N·m (22% higher than API standards). |
Withstands the complex loads of ultra-deep well drilling |
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Ensuring geometric consistency |
Fully constant-temperature casting and 3D laser scanning calibration ensure ovality ≤0.15mm. |
Quick connection reduces wellhead operation time by 50% |
Key Features
- Forging precision: 3-layer silica sol shell controls deformation within <0.1%, with thread profile accuracy meeting API SPEC 7-1 Class 1 requirements.
- Material Technology: Exclusive multi-directional forging + tempering heat treatment technology ensures grain size ≥8 grade (ASTM E112).
- Certification System: Certified by API Q1 & ISO 9001, providing full-scale inspection reports (including SSRT slow strain rate testing).
Technical Specifications
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Material |
AISI 1045, 1050 Carbon Steel (ASTM A576) |
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Size Range |
1" – 6" OD (customizable) |
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Thread Standards |
API 7-1, IF, REG, NPT, or custom specifications |
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Hardness |
40–55 HRC (heat-treated) |
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Surface Finish |
Shot-blasted, machined, or coated (zinc, phosphate) |
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Standards |
ISO 9001, API 7-1, DIN 2248 |
Applications
1.Ultra-Deep Well
2.Geotechnical Drilling
3.API Replacement
Why Choose Our Drill Rod Joints?
The first is thread precision, ordinary castings usually need machining threads, but our near net forming can reduce the amount of processing;
The second is material properties, low impact toughness index should be emphasized;
The last is failure prevention, our transition fillet design to prevent stress corrosion cracking.
FAQ
Q: 1. Do you provide samples? Is it free?
A: Yes, we could offer the samples, but it not for free, the samples cost and freight will be for client's side.
Q: 2.Could I use my own logo or design on goods?
A: Yes. Customized logo and design on production are available.
Q: 3.How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. Normal producing time 4-6 weeks if the goods are not in stock and need to open new mould. The delivery time is according to quantity.
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