Luois Metals stands out as a reliable manufacturer and supplier of High Speed Steel T1 Bars, proudly based in Houston, USA. We’ve built a reputation for delivering top-notch tool steel products, focusing on T1 bars that are designed for exceptional durability, strength, and precision in cutting. High Speed Steel T1, a tungsten-based alloy, is well-known for its remarkable wear resistance, red hardness, and machinability. Our T1 bars come in a variety of diameters and lengths, available in both annealed and hardened states to cater to diverse tooling needs. We proudly support industries like metalworking, automotive, aerospace, and die manufacturing with our dependable T1 solutions.
The composition of High Speed Steel T1 Bars includes carbon, tungsten (around 18%), chromium, and vanadium, while notably lacking cobalt. This unique blend results in T1 achieving impressive hardness (up to 64 HRC), along with good red hardness and resistance to wear and deformation, even at high speeds and elevated temperatures. T1 retains its cutting edge under thermal stress, making it a trustworthy choice for general-purpose cutting tools. Additionally, the alloy provides good toughness and grindability, ensuring consistent tool performance and ease of fabrication in precision settings.
| ASTM A600 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| T1 | 0.62 | 0.80 | 0.10 | 0.40 | 0.03 | 0.03 | 0.20 | 0.40 | 3.75 | 4.50 | 0.90 | 1.30 | … | … | 17.25 | 18.75 | … | … |
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| HS18-0-1/1.3355 | 0.73 | 0.85 | … | … | … | … | … | 0.65 | 3.60 | 4.50 | 1.00 | 1.20 | … | … | 17.20 | 18.70 | … | … |
| JIS G4403 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| SKH2 | 0.73 | 0.83 | … | 0.40 | 0.03 | 0.03 | … | 0.45 | 3.80 | 4.50 | 1.00 | 1.20 | … | … | 17.20 | 18.70 | … | … |
| Properties | Metric | Imperial |
| Density | 8.67 g/cm3 | 0.313 lb/in3 |
| Hardness, Rockwell C | 63.0 – 65.0 | 63.0 – 65.0 |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30457 ksi |
| Country | USA | German | Japan |
| Standard | ASTM A600 | DIN EN ISO 4957 | JIS G4403 |
| Grades | T1 | HS18-0-1/1.3355 | SKH2 |
| Properties | Conditions | ||
| T (°C) | Treatment | ||
| Thermal expansion | 9.7 x 10-6/ºC | 20-200 more | – |
| Thermal conductivity | 19.9 x W/m-K | 100 more | – |
Yes, High-Speed Steel T1 bars can be welded, but it requires specialized techniques like preheating and post-weld heat treatment to prevent cracking and maintain their hardness and strength properties.
High-Speed Steel T1 bars resist corrosion due to the presence of chromium, which forms a protective oxide layer on the surface. This enhances their resistance to moisture and chemical wear, prolonging tool life.
High-Speed Steel T1 bars should be stored in a dry, cool environment, protected from moisture and corrosive elements. They should be kept off the ground, ideally on shelves or in sealed containers.
T1 Bars are frequently utilized in the production of cutting tools such as drills, end mills, broaches, reamers, punches, and taps. They excel in applications that demand sustained edge sharpness and durability during high-speed machining. T1 is also a popular choice for blanking and forming dies, particularly in processes involving mild or low-carbon steels. At Luois Metals, we offer High Speed Steel T1 Bars in custom lengths, sizes, and conditions tailored to meet specific tooling requirements, guaranteeing optimal performance and cost-effective solutions for a wide array of industrial applications.






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