Phehlukwayo Metal, located in Cape Town, South Africa, is a well-respected manufacturer and supplier of high-performance metals. They offer a diverse selection of precision-engineered products, including High Speed Steel (HSS) T42 Bars. Known for their exceptional quality and reliability, the company is committed to providing materials that adhere to strict industrial standards. The HSS T42 Bars from Phehlukwayo Metal are crafted using cutting-edge metallurgical techniques, which guarantee superior hardness, durability, and cutting performance. Catering to a variety of industries such as tooling, engineering, and manufacturing, the company provides solutions that boost productivity, endure extreme conditions, and maintain precision across a wide array of demanding applications.
High Speed Steel T42 Bars are made with about 1.3% carbon, 4% chromium, 9% tungsten, 8% cobalt, 2% vanadium, and 1.5% molybdenum. This distinctive blend results in an impressive combination of hardness, wear resistance, and red hardness. The high levels of cobalt and tungsten improve hot hardness and cutting efficiency at elevated temperatures, while vanadium enhances abrasion resistance. Mechanically, T42 showcases excellent toughness and high compressive strength, making it perfect for heavy-duty cutting and machining tasks. Its fine-grained microstructure ensures stability, durability, and consistent performance even under extreme operational stresses.
| Aisi No. | Work No. | C. | Si. | Mn. | Cr. | Mo. | V. | W. | Co. | |
| T-42 | 1.3207 | 1.28 | 0.23 | 0.20 | 4.15 | 3.55 | 3.25 | 9.5 | 10.0 |
| Density | 2.79 g/cm³ |
| Melting Point | 640 °C |
| Proof Stress | 270 MPa |
| Tensile Strength | 405 Min MPa |
| Elongation | 12 Min % |
| Bohler | AISI | BS | IS | JIS | DIN |
| S 700 | T42 | BT42 | XT125WCo10 CrMo4V3 | SKH-57 | (1.3207) |
| Thermal Expansion | 23.10 x10^-6 /K |
| Modulus of Elasticity | 73 GPa |
| Thermal Conductivity | 121-193 W/m.K |
Yes, T42 Alloy High-Speed Steel Bars can be heat treated. They are typically hardened through heat treatment processes like quenching and tempering to enhance hardness, wear resistance, and performance.
Welding T42 High-Speed Steel Bars is challenging due to their high carbon content and hardness. If welding is required, preheating and post-weld heat treatment are often necessary to prevent cracking and ensure strength.
T42 High-Speed Steel Bars should be stored in a dry, cool environment to prevent rust and corrosion. They should be kept off the ground, ideally on wooden or plastic pallets, and protected from moisture and extreme temperatures.
High Speed Steel T42 Bars are commonly used in the production of precision cutting tools like drills, end mills, taps, gear cutters, and reamers. They excel in high-speed machining operations involving hard or abrasive materials, maintaining cutting efficiency and edge retention even in the face of intense heat and pressure. Beyond tooling, T42 Bars find applications in the aerospace, automotive, and die-making industries, where superior hardness and thermal stability are essential. Their ability to perform reliably in challenging conditions makes them a top choice for demanding applications.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Phehlukwayo Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Cape Town, South Africa
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