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Gr 4130 thick wall drill pipe
, carbon steel oil well pipe
, round shape oil field pipe
Gr 4130 Thick Wall Oil Well Drill Pipe Round Shape Carbon Steel Pipe in Oil Field
Gr 4130 Thick Wall Oil Well Drill Pipe Round Shape Carbon Steel Pipe in Oil Field
Description
This Gr 4130 Thick Wall Oil Well Drill Pipe represents a premium-grade seamless carbon steel pipe specifically engineered for the most demanding drilling operations in the oil and gas industry. Manufactured from AISI 4130 chromium-molybdenum alloy steel with enhanced wall thickness, this robust drilling component delivers exceptional mechanical performance and reliability in challenging downhole environments where standard drill pipes would be inadequate.
The pipe's substantial wall thickness provides superior collapse resistance and increased torsional strength, making it ideally suited for deep well drilling, directional drilling, and other applications requiring extra mechanical integrity. The Grade 4130 material composition offers an excellent balance of high tensile strength, remarkable toughness, and improved fatigue resistance compared to conventional carbon steel pipes, ensuring reliable performance under extreme cyclic loading conditions.
This round-shaped drill pipe undergoes strict quality control and heat treatment processes to achieve optimal mechanical properties, including enhanced yield strength and improved impact resistance at various temperature ranges. The thick-wall design significantly increases the pipe's stiffness, improving drilling efficiency and accuracy while reducing the risk of deviation in complex well trajectories.
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 |
Gr 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 |
Gr 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 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
Deep well and ultra-deep well drilling operations
Directional and horizontal drilling applications
Heavy-weight drill pipe in bottom hole assemblies
Drilling in hard formations and abrasive environments
High-pressure and high-temperature (HPHT) well conditions
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