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AISI 4130 steel oil well pipe
, seamless casing pipe for oil wells
, oil well pipe with warranty
AISI 4130 Steel Pipe Oil Well Pipe , Seamless Casing Pipe for Oil Wells
AISI 4130 Steel Pipe Oil Well Pipe , Seamless Casing Pipe for Oil Wells
Description
AISI 4130 Steel Pipe Oil Well Pipe, a premium seamless casing pipe for oil wells, is engineered to excel in the harsh and high-stakes environments of oil and gas exploration. Crafted from high-grade SAE 4130 chromium-molybdenum alloy steel, this seamless casing pipe stands out for its exceptional structural integrity and resistance to downhole challenges.
Its precise chemical composition—featuring 0.28-0.33% carbon, 0.80-1.10% chromium, and 0.15-0.25% molybdenum—delivers outstanding mechanical properties, including a minimum tensile strength of 813 MPa and yield strength of 690 MPa. These attributes enable it to withstand extreme pressure, high temperature (HPHT) conditions, and corrosive fluids commonly encountered in deep oil wells, effectively preventing casing collapse and ensuring long-term wellbore stability.
The seamless manufacturing process eliminates weld seams, a common weak point in traditional casing pipes, while specialized heat treatments (such as quenching and tempering) enhance its toughness and fatigue resistance. Suitable for both onshore and offshore oil wells, this SAE 4130 seamless casing pipe undergoes rigorous quality checks—including ultrasonic testing, hydrostatic testing, and dimensional verification—to meet industry standards. It plays a critical role in securing the wellbore, isolating production zones, and protecting groundwater, making it an indispensable component for reliable and efficient oil well operations.
Specification
|
Parameter
|
Details
|
| Material Grade |
4130, 4140, 4145 |
| Standard |
ASTM A519 |
| Outer Diameter (OD) |
30 - 140mm |
| Wall Thickness (WT) |
3 - 20mm |
| Surface Treatment |
Anti-rust oil, or as customer’s requirements |
| Application |
Oil Well Drilling Rod Tubing, Casing Tubing |
Delivery Condition
+SR (Stress Relieved): Ideal for machining, ensures low residual stresses and high straightness.
+N (Normalized): Enhances microstructural uniformity and toughness.
+QT (Quenched & Tempered): Provides superior strength and hardness for extreme downhole conditions.
Chemical Composition
| Steel Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
| 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 |
Mechanical Properties
| Steel Grade |
Deliver Condition |
Tensile Strength
(Mpa)
|
Yield Strength
(Mpa)
|
Elongation
(%)
|
Hardness(HRC) |
| 4130 |
+ SR |
≥813 |
≥690 |
≥15% |
≥24 |
Features
Superior Toughness and Impact Resistance
Good Fatigue Resistance
Favorable Weldability and Machinability
Excellent Strength-to-Weight Ratio
Cost-Effectiveness for Specific Applications
Application
Drill Rod Tubing
Casing Tubing
Coupling Tubing
Packing
Steel-strapped bundles with plastic end caps and wooden case
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