Thabiso Steel stands out as a premier manufacturer and supplier located in Cape Town, South Africa, specializing in high-quality Alloy Steel 4140 Foil. This product is renowned for its exceptional strength, toughness, and durability. The company is committed to providing products that adhere to international standards, ensuring reliable performance even in the most demanding industrial settings. Thabiso Steel’s Alloy Steel 4140 Foil is crafted to deliver outstanding wear resistance, impressive fatigue strength, and precise dimensional accuracy. It finds its place in various industries, including aerospace, automotive, and engineering, where precision, reliability, and the ability to withstand stress and deformation are crucial for essential operations.
The composition of Alloy Steel 4140 Foil primarily includes chromium, molybdenum, and manganese, along with a moderate amount of carbon. This unique blend boosts hardenability, strength, and resistance to wear and impact. The foil showcases a tensile strength that ranges from 655 to 1080 MPa and a yield strength of about 415 MPa, all while maintaining good ductility and machinability. It also remains stable during heat treatment, striking a balance between toughness and hardness that makes it ideal for both mechanical and structural applications.
| Specifications | : | ASTM A387 / ASME SA387 |
| Thickness | : | 1mm-300mm |
| Width | : | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, 4050mm etc |
| Length | : | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, 12000mm, 15000mm etc |
| Surface | : | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc |
| Finish | : | Hot rolled plate (HR), Cold rolled sheet (CR) |
| Form | : | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Strip etc. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| Alloy Steel 4140 | 0.15 max | 0.30-0.60 | 1.0 max | 0.030 max | 0.030 max | 8.0 – 10.0 | 0.90 – 1.10 | – | – |
| Tensile (MPa) | Yield (MPa) | Elongation (50mm) | Elongation (200mm) | Reduction of Area |
| 415 – 585 | 205 min | 18% min | – | 40% min |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Alloy Steel 4140 Foil is extensively utilized in industries that demand materials combining strength, flexibility, and precision. It’s commonly used in the manufacturing of aerospace components, automotive parts, springs, gears, and tooling materials. Thanks to its excellent mechanical properties, the foil is well-suited for forming, fabrication, and surface-hardening processes. In the engineering and machinery sectors, Alloy Steel 4140 Foil is essential for components that need to endure high stress, fatigue, and impact. Its durability and dimensional stability guarantee dependable performance in critical and high-pressure industrial environments.
ThabisoSteel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Cape Town, South Africa.
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