Grade 4130 Thick Wall Seamless Steel Drill Pipe for Geothermal Well Drilling
Price:
Negotiable
MOQ:
1 ton
Delivery Time:
45 - 60 days
Brand:
Hongbao
Product Description
Gr 4130 Thick Wall Oil Well Drill Pipe
Round Shape Carbon Steel Pipe for Geothermal Well Drilling
Product Overview
This Grade 4130 thick-wall drill pipe represents advanced carbon steel engineering specifically designed for challenging geothermal well drilling applications. Manufactured as seamless round tubing with enhanced wall thickness, it delivers exceptional torsional strength and pressure integrity in high-temperature geothermal environments.
The heavy-wall construction provides superior resistance to compression loading and deformation when drilling through abrasive volcanic formations typical in geothermal fields. Its chromium-molybdenum alloy composition offers reliable performance in corrosive geothermal fluids containing H₂S and CO₂, while maintaining structural stability at elevated temperatures up to 400°C.
Precision-engineered with controlled heat treatment, this drill pipe achieves optimal mechanical properties for extended-reach drilling operations. The thick-walled design ensures extended service life in both drilling and casing applications, reducing operational downtime in extreme geothermal conditions where conventional drill pipes would fail prematurely.
Specifications
| Specifications | Standards |
|---|---|
| Size | O.D.: 4 to 219mm W.T.: 0.5 to 20mm |
| Specialized in | Large Diameter Size |
| Length | Within 13500mm |
| Type | Seamless |
| Shape | Round |
| End | Plain End, Beveled End, Threaded |
Chemical Composition
| Element | Content (%) |
|---|---|
| Iron, Fe | 97.03 - 98.22 |
| Chromium, Cr | 0.80 - 1.10 |
| Manganese, Mn | 0.40 - 0.60 |
| Carbon, C | 0.280 - 0.330 |
| Silicon, Si | 0.15 - 0.30 |
| Molybdenum, Mo | 0.15 - 0.25 |
| Sulfur, S | 0.040 |
| Phosphorous, P | 0.035 |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 560 MPa | 81200 psi |
| Tensile strength, yield | 460 MPa | 66700 psi |
| Modulus of elasticity | 190-210 GPa | 27557-30458 ksi |
| Bulk modulus | 140 GPa | 20300 ksi |
| Shear modulus | 80 GPa | 11600 ksi |
| Poissons ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 21.50% | 21.50% |
| Reduction of area | 59.6 | 59.60% |
| Hardness, Brinell | 217 | 217 |
| Hardness, Knoop | 240 | 240 |
| Hardness, Rockwell B | 95 | 95 |
| Hardness, Rockwell C | 17 | 17 |
| Hardness, Vickers | 228 | 228 |
| Machinability | 70 | 70 |
Key Features and Benefits
- Enhanced Mechanical Strength: Superior yield and tensile strength for deep well applications
- Exceptional Collapse Resistance: Thick wall design withstands extreme external pressures
- Improved Fatigue Life: Excellent resistance to cyclic loading and vibration stresses
- Optimized Drilling Performance: Maintains wellbore stability and drilling accuracy
- Corrosion Resistance: Chromium-molybdenum composition provides better corrosion resistance than standard carbon steel
Typical Applications
- Mine blasting
- Water well drilling
- Geothermal wells drilling
- Fore poling
- Coal
- Nonferrous metal mining projects
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Company
Jiangsu Hongbao Group Co., Ltd.
Location
DAXIN TOWN,ZHANGJIAGANG,JIANGSU P.R.CHINA
Contact Person
Angela