Neil Metals, a well-respected manufacturer and supplier located in Kolkata, India, specializes in producing top-notch High Speed Steel T42 Bars, crafted for the toughest cutting and machining tasks. Renowned for their precision manufacturing and consistent metallurgical properties, Neil Metals ensures that their T42 bars meet international standards, boasting remarkable hardness, wear resistance, and cutting efficiency. These bars find their place in tool and die making, metalworking, and various manufacturing sectors. With a strong dedication to quality and timely delivery, Neil Metals caters to industries throughout India and exports to global markets in search of durable, high-performance tooling materials.
High Speed Steel T42 Bars are made from tungsten-cobalt-based tool steels, containing Carbon (around 1.25%), Tungsten (approximately 9%), Cobalt (about 8%), Chromium (around 4%), Vanadium (roughly 1.3%), and Molybdenum (nearly 1.5%). The inclusion of cobalt boosts red hardness and hot strength, enabling T42 to maintain its cutting performance even at elevated temperatures exceeding 600°C. After heat treatment, these bars can achieve hardness levels of 66–68 HRC, providing excellent edge retention, wear resistance, and thermal stability, making them perfect for high-speed cutting and forming tasks.
| 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.
High Speed Steel T42 Bars are commonly utilized in the production of cutting tools like drills, reamers, milling cutters, broaches, punches, and dies. They excel in machining high-strength materials and superalloys at high speeds, where tool wear and thermal load are critical concerns. T42 is particularly favored in the aerospace, automotive, die-making, and general engineering sectors due to its durability and precision. Its outstanding red hardness and wear resistance guarantee a long tool life, reduced downtime, and enhanced productivity in high-pressure and high-temperature environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
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