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Grade 4130 Chromoly drilling pipe
, high-strength steel oil well pipe
, oil & gas drilling steel pipe
Grade 4130 Chromoly Oil Drilling Pipe , High-Strength Steel Pipe for Nonferrous Metal Mining Projects
Grade 4130 Chromoly Oil Drilling Pipe , High-Strength Steel Pipe for Nonferrous Metal Mining Projects
Description
This Grade 4130 chromoly drilling pipe represents premium-grade seamless tubing engineered for demanding applications in both oilfield drilling and nonferrous mining operations. Manufactured from chromium-molybdenum alloy steel, it delivers exceptional mechanical properties including high tensile strength (minimum 100,000 psi yield strength), superior torsional resistance, and enhanced fatigue durability required for aggressive drilling environments.
The pipe's seamless construction ensures reliable performance in challenging nonferrous mining applications including copper, lithium, and nickel extraction. Its chromium-molybdenum composition provides excellent resistance to abrasive slurries and corrosive media commonly encountered in mining operations. The enhanced wall thickness and optimized chemical composition make it ideal for both drilling and casing applications in demanding geological formations.
Precision-manufactured through controlled heat treatment and cold drawing processes, each pipe undergoes rigorous quality testing to international standards. This ensures consistent performance in extended-reach drilling operations and provides superior service life in both conventional oil drilling and specialized nonferrous mining projects, where reliability and durability are critical for operational success.
Specification
| 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, Treaded |
Grade 4130 Pipe 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 |
Grade 4130 Pipe 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 (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, value below normal HRC range, for comparison purposes only.) |
17 |
17 |
| Hardness, Vickers (Converted from Brinell hardness) |
228 |
228 |
| Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.) |
70 |
70 |
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
Mine blasting
Water well drilling
Geothermal wells drilling
Fore poling
Coal
Nonferrous metal mining projects
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