90MM Outer Diameter Gr 4130 Chromium-Molybdenum Alloy Seamless Steel Pipe for Oil Well Drill Pipe and Casing Tubing
This Outer Diameter 90MM Gr 4130 Oil Well Drill Pipe represents a high-grade seamless steel solution engineered for demanding downhole operations in the oil and gas industry. Manufactured from chromium-molybdenum alloy steel (AISI 4130) and produced as a seamless tube, this product combines exceptional mechanical properties with reliable performance for use in drill strings, casing, and tubing applications where precision dimensions and structural integrity are critical.
With an exact outer diameter of 90 millimeters, this pipe is designed to meet specific wellbore geometry requirements while providing the necessary strength-to-weight ratio for efficient drilling and completion operations. The Gr 4130 material composition delivers superior tensile strength, excellent fatigue resistance, and enhanced toughness compared to conventional carbon steel pipes, making it suitable for medium-depth to deep well applications where higher mechanical performance is required.
The seamless manufacturing process ensures a homogeneous microstructure without welding seams or weak points, significantly enhancing its pressure-containing capabilities and resistance to collapse under external pressures. This pipe can be heat-treated to achieve desired mechanical properties and is capable of withstanding demanding downhole conditions including high internal pressure, axial loading, and corrosive environments.
| Specifications | Details |
|---|---|
| Standards | 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 |
- Drill pipe for medium-depth drilling operations
- Casing strings for well reinforcement
- Tubing for production and injection wells
- Downhole tool components and accessories
- Consistent 90mm OD for precise well planning and tool compatibility
- Excellent yield strength and fatigue endurance for extended service life
- Enhanced resistance to shock loading and deformation
- Suitable for sour service applications with proper heat treatment
- Superior dimensional accuracy and surface finish
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