Outer Diameter 90MM 4130 Oil Drilling Pipe Alloy Steel Pipe for Casing Pipe
Description
This AISI 4130 30CrMo Chromoly Alloy Oil Drilling Pipe represents a premium-grade, heavy-wall seamless steel pipe specifically engineered for the most demanding casing and production applications in the oil and gas industry. Manufactured from chromium-molybdenum alloy steel conforming to both AISI 4130 and 30CrMo specifications, this robust piping solution combines exceptional mechanical strength with superior corrosion resistance, making it ideal for critical downhole applications where reliability and longevity are paramount.
The pipe's heavy-wall design provides enhanced collapse resistance and superior structural integrity, enabling it to withstand extreme external pressures, high axial loads, and severe mechanical stresses encountered in deep well and high-pressure applications. The chromium-molybdenum alloy composition (typically containing 0.28-0.33% carbon, 0.8-1.1% chromium, and 0.15-0.25% molybdenum) delivers an optimal balance of high tensile strength, excellent toughness, and improved fatigue resistance compared to conventional carbon steel pipes.
This seamless chromoly pipe undergoes precise heat treatment processes including quenching and tempering to achieve mechanical properties typically featuring yield strengths of 550-750 MPa and tensile strengths of 700-900 MPa, while maintaining excellent impact toughness at various temperature ranges. The heavy-wall construction ensures maximum resistance to deformation under load and provides extended service life in both casing and production applications.
Specification
| Product Name | Oil Well Drilling Pipe |
| Material | 30CrMo,42CrMo,4130, 4140 |
| Standard | ASTM,DIN.GBJIS |
| Wall Thickness | 4-219mm |
| Outer Diameter | 0.5-20mm |
| Packing | Bundle, or with al kinds of colors PVC or as your requirements |
| Surface | Black painting varnish paint, anti rust oil, hot galvanized,cold galvanized |
| Application | Mine blasting, water well drilling, geothermal wells drilling, fore poling, coal and nonferrous metal mining projects |
Chemical Composition
| Steel Grade | C | Si | Mn | P | S | Cr | Mo | B |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | ≤0.040 | ≤0.040 | 0.80-1.10 | 0.15-0.25 | |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | ≤0.040 | ≤0.040 | 0.80-1.10 | 0.15-0.25 | |
| 45MnMoB | 0.43-0.48 | 0.17-0.37 | 1.05-1.35 | ≤0.020 | ≤0.015 | | 0.20-0.25 | 0.001-0.005 |
| 1541 | 0.36-0.44 | - | 1.35-1.65 | ≤0.040 | ≤0.050 | | | |
| 30CrMnSiA | 0.28-0.34 | 0.90-1.20 | 0.80-1.10 | ≤0.020 | ≤0.015 | 0.80-1.10 | | |
Mechanical Properties
| Steel Grade | Deliver Condition | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) | Hardness(HRC) |
| 4130 | + SR | ≥813 | ≥690 | ≥15% | ≥24 |
| 4140 | QT | ≥950 | ≥850 | ≥14% | 28 - 33 |
| 45MnMoB | + N | ≥790 | ≥600 | ≥14% | - |
| 1541 | + SR | ≥813 | ≥690 | ≥15% | ≥24 |
| 30CrMnSiA | QT | ≥850 | ≥750 | ≥14% | 26-31 |
Key Features and Benefits
Enhanced Collapse Resistance: Heavy-wall design withstands extreme external pressures
Superior Mechanical Strength: High yield and tensile strength for deep well applications
Excellent Fatigue Resistance: Performs reliably under cyclic loading conditions
Improved Corrosion Resistance: Chromium content provides better corrosion resistance than carbon steel
Seamless Reliability: Homogeneous microstructure without weld defects or imperfections
Typical Applications
Production tubing in high-pressure wells
Casing strings for deep well applications
Surface casing and intermediate casing
High-pressure injection and production lines
Downhole tools and completion equipment
Packing
Standard Export Packing: Bundles with plastic end caps or wooden box package
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Outer Diameter 90MM 4130 Oil Drilling Pipe Alloy Steel Pipe for Casing Pipe Images
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