ASTM A519 Grade 4130 Seamless Cold Drawn Oil Drilling Pipe for Drill Rod Applications
This ASTM A519 Grade 4130 oil drilling pipe represents premium chromium-molybdenum alloy tubing engineered for demanding drilling applications. Manufactured as seamless round pipe through precision cold drawing and heat treatment processes, it delivers exceptional yield strength (minimum 100,000 psi) and superior torsional resistance for heavy-duty drill rod applications.
The pipe's chemical composition provides optimal mechanical properties including enhanced fatigue durability and excellent impact resistance in aggressive downhole environments. Its seamless construction ensures uniform wall thickness and dimensional stability, critical for maintaining performance under extreme compression loads and cyclic stresses during extended-reach drilling operations.
Certified to ASTM A519 standards, each length undergoes rigorous non-destructive testing to guarantee material integrity and performance consistency. This drill pipe is specifically designed for use in deep-well drilling, mineral exploration, and challenging geological conditions where reliability and extended service life are essential for operational efficiency and cost-effectiveness.
| Specifications | ASTM, ASME and API |
|---|---|
| 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 |
| 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 |
| 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 (Typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (Typical for steel) | 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 (Converted from Brinell hardness) | 240 | 240 |
| Hardness, Rockwell B (Converted from Brinell hardness) | 95 | 95 |
| Hardness, Rockwell C (Converted from Brinell hardness) | 17 | 17 |
| Hardness, Vickers (Converted from Brinell hardness) | 228 | 228 |
| Machinability (Annealed and cold drawn) | 70 | 70 |
In plywood case
- Exceptional Strength & Toughness: Handles extreme downhole stresses
- Superior Fatigue Life: Resists failure from repeated cyclic loads
- Seamless Reliability: Homogeneous structure with no weld seams
- Optimized for HPHT Wells: Maintains performance in harsh environments
- Mine blasting
- Water well drilling
- Geothermal wells drilling
- Fore poling
- Coal
- Nonferrous metal mining projects
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