- sales@bosegapipes.co.za
- Cape Town, South Africa
Home > Alloy Steel >AISI 4140 Tubing
Bosega Pipes and Tubes, located in Cape Town, South Africa, stands out as a top manufacturer and supplier of high-quality AISI 4140 Tubing. This tubing is specifically designed for strength, durability, and high-performance applications. Renowned for its exceptional mechanical properties, it resists wear, corrosion, and fatigue, all while meeting rigorous international standards. At Bosega, the focus is on precision manufacturing, quality assurance, and ensuring customer satisfaction, which guarantees reliable and consistent performance. AISI 4140 Tubing finds its place in various industries, including oil and gas, power generation, automotive, and heavy machinery, providing effective solutions for demanding industrial operations that require resilience under high stress and temperature.
AISI 4140 Tubing is a low-alloy steel that contains about 0.4% carbon, 0.8–1.1% chromium, and 0.15–0.25% molybdenum, which together enhance its toughness, hardness, and strength. It boasts a tensile strength of approximately 655 MPa and a yield strength of 415 MPa, along with excellent elongation, making it durable even in tough conditions. This tubing is known for its superior fatigue resistance, hardenability, and weldability, making it perfect for structural and high-pressure applications that demand long-term reliability and mechanical stability.
| 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 Bosega 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.
Bosega Pipes and Tubes, a top supplier of AISI 4140 Tubing in Cape Town, South Africa, 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 Bosega 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@bosegapipes.co.za.
You’ll find AISI 4140 Tubing widely used in situations that require high strength, toughness, and wear resistance. It’s commonly found in hydraulic systems, automotive parts, aircraft landing gears, shafts, and heavy machinery. Its ability to endure high pressure and stress makes it a great fit for oil and gas pipelines, refinery equipment, and power generation machinery. Plus, AISI 4140 Tubing is ideal for structural components, gears, and crankshafts, where long-lasting performance, mechanical reliability, and safety in extreme operating conditions are absolutely essential.
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