Thabiso Steel, based in Cape Town, South Africa, has built a solid reputation as a top-notch manufacturer and supplier of high-quality alloy steel products that are trusted by various industries. One of their standout offerings is the AISI 4140 Tubing, known for its exceptional strength, durability, and precision engineering. Crafted with cutting-edge production methods and heat treatment processes, this tubing adheres to international standards for mechanical performance and reliability. Thabiso Steel’s dedication to excellence, innovation, and customer satisfaction guarantees that their AISI 4140 Tubing consistently delivers quality and dependable service, even in the most demanding industrial settings.
AISI 4140 Tubing is primarily made up of chromium, molybdenum, and carbon, creating a versatile low-alloy steel with remarkable mechanical properties. The chromium enhances hardness and oxidation resistance, while molybdenum boosts tensile strength, toughness, and wear resistance. This tubing showcases high yield and tensile strength, outstanding fatigue resistance, and good ductility. Its fine-grained microstructure ensures dimensional accuracy and stability under high stress, making it perfect for applications that require both durability and precision.
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | EN | JIS | BS | GOST |
| AISI 4140 | 1.7218 | G41300 | – | 25CrMo4 | JIS G4105 | BS 970 | – |
| AISI 4140 | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr |
| 0.50 max | 0.28-0.33 | 0.15-0.25 | 0.40-0.60 | 0.15-0.35 | 97.3-98.22 | – | 0.025 MAX | 0.035 MAX | 0.80-1.10 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 0.28 | 2580 | 460 MPa | 560 MPa | 20 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Jaxon Steel is a leading manufacturer and distributor of high-quality AISI 4140 Tubing in Cape Town, South Africa. We offer premium steel materials and a diverse range of products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel. Our extensive inventory includes Tubes, Pipes, Flanges, Pipe Fittings, Forged Fittings, Sheets, and Plates. Committed to prompt delivery and exceptional customer service, we source the finest raw materials to ensure superior strength and performance in demanding industrial applications. Contact us today for all your AISI 4140 Tubing needs!
You’ll find AISI 4140 Tubing widely utilized in sectors like oil and gas, automotive, mechanical engineering, power generation, and construction. It’s particularly suited for high-pressure and high-temperature applications, such as hydraulic systems, drive shafts, drill collars, and structural components. The tubing performs reliably in harsh conditions, offering excellent resistance to wear, impact, and corrosion. With its blend of strength, machinability, and toughness, AISI 4140 Tubing is the go-to choice for manufacturers looking for durable and efficient alloy steel solutions for their critical operations.
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.
Copyright 2025 ThabisoSteel. All rights reserved
