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Home > Alloy Steel >AISI 4140 Tubing
Liam Pipes and Tubes stands out as a leading manufacturer and supplier of AISI 4140 Tubing, proudly based in Houston, USA. With a focus on alloy steel products, this company provides high-performance tubing solutions that are perfect for tough mechanical and structural applications. AISI 4140 Tubing is well-known for its impressive strength, toughness, and ability to resist fatigue and impact. To ensure top-notch quality, Liam Pipes and Tubes employs advanced manufacturing techniques along with rigorous quality controls. Their AISI 4140 Tubing is a trusted choice across various sectors, including automotive, aerospace, oil and gas, and heavy machinery, making them a go-to supplier for those in need of durable and high-strength alloy tubing.
AISI 4140 Tubing is crafted from a chromium-molybdenum alloy steel that contains about 0.38–0.43% carbon, 0.75–1.00% manganese, 0.80–1.10% chromium, and 0.15–0.25% molybdenum. This unique blend gives it excellent hardenability, wear resistance, and tensile strength. Typically, it boasts a tensile strength ranging from 95,000 to 160,000 psi (655 to 1103 MPa) and a yield strength of around 60,000 to 100,000 psi (414 to 690 MPa), depending on the heat treatment it undergoes. AISI 4140 Tubing can also be heat treated to enhance its hardness and strength. Its well-balanced composition makes it ideal for applications that face high stress, shock, and vibration, while also providing good machinability and weldability when handled correctly.
| Dimensions | ASTM, ASME and API |
|---|---|
| Supplier of 4140 Alloy Steel Tube in Length | Within 13500 millimeter |
| Speciality in | Large Diameter Size |
| Size | 4 to 219 millimeter W. T.: 0.5 to 20 millimeter |
| Length | In Single and Double Random & Cut to Length Suppliers |
| AISI 4140 Tube Type | Welded / Seamless / Fabricated / ERW |
| Form | Round, Square, Rectangular, Hydraulic. |
| End | Plain End, Threaded, Beveled End |
| Standard | Grade | C | Mn | P | S | Si | Ni | Cr | Mo |
| ASTM A29 | 4140 | 0.38-0.43 | 0.75-1.00 | 0.035 | 0.040 | 0.15-0.35 | – | 0.8-1.10 | 0.15-0.25 |
| EN 10250 | 42CrMo4/ 1.7224 | 0.38-0.45 | 0.6-0.9 | 0.035 | 0.035 | 0.4 | – | 0.9-1.2 | 0.15-0.30 |
| JIS G4105 | SCM440 | 0.38-0.43 | 0.60-0.85 | 0.03 | 0.03 | 0.15-0.35 | – | 0.9-1.2 | 0.15-0.30 |
| Properties | Metric | Imperial |
| Hardness, Vickers (converted from Brinell hardness) | 207 | 207 |
| Tensile strength | 655 MPa | 95000 psi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Yield strength | 415 MPa | 60200 psi |
| Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 13 | 13 |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 25.70% | 25.70% |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Hardness, Brinell | 197 | 197 |
| Machinability (based on AISI 1212 as 100 machinability) | 65 | 65 |
| Hardness, Rockwell B (converted from Brinell hardness) | 92 | 92 |
| Hardness, Knoop (converted from Brinell hardness) | 219 | 219 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
When you choose AISI 4140 Tubing from Liam Pipes and Tubes, you can count on exceptional quality and long-lasting durability. These tubes offer excellent corrosion resistance and high strength, making them perfect for various industrial applications. Our commitment to outstanding service and reliable delivery guarantees customer satisfaction with every order. With extensive expertise in stainless steel products, we provide premium solutions tailored to meet your unique needs.
Liam Pipes and Tubes, a top supplier of AISI 4140 Tubing in Houston , USA, offers a comprehensive range of high-quality pipes and tubes for various industrial applications. With an extensive inventory and a commitment to exceptional customer service, they have become the go-to source for stainless steel products in the area.
At Liam Pipes and Tubes, we specialize in providing custom-sized AISI 4140 Tubing designed to meet your specific requirements. Our expert team is committed to delivering personalized solutions for all your piping and tubing needs. For more details, contact us at sales@liampipes.us.
This tubing is commonly utilized in a variety of high-stress mechanical and industrial applications thanks to its toughness and fatigue strength. You’ll find it in hydraulic cylinders, automotive axles, crankshafts, drill collars, connecting rods, drive shafts, gear shafts, and structural components in heavy equipment. Its capacity to endure high pressure and dynamic loads makes it perfect for oil and gas tools, mining equipment, and aerospace parts. With outstanding mechanical performance in both normalized and quenched-tempered states, AISI 4140 Tubing ensures reliable operation even in the harshest working environments.
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