Dhruv Metals is a trusted supplier of High Speed Steel T1 Bars, providing excellent quality to industries in Hyderabad, India, and beyond. T1 is a tungsten-based high-speed tool steel known for its hardness, wear resistance, and ability to keep cutting edges sharp at high temperatures. These bars are commonly used in precision machining and tool manufacturing. Dhruv Metals produces T1 Bars according to ASTM A600 specifications, offering them in annealed or hardened and tempered conditions. Each bar goes through strict quality testing to ensure durability, strength, and dimensional accuracy for high-performance tooling and cutting tasks.
High Speed Steel T1 usually contains tungsten (17–18%), carbon (0.65–0.80%), chromium (3.75–5%), vanadium (0.9–1.3%), and cobalt (0.3% max), with iron as the base. The material can reach a hardness of 63–66 HRC after heat treatment. It has great compressive strength and maintains high red hardness, allowing effective use at temperatures up to 600°C. T1 provides tensile strength above 850 MPa and keeps edge stability during continuous cutting. It is tough, wear-resistant, and can be ground to sharp tolerances easily.
| 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 are mainly used to make cutting tools, drill bits, milling cutters, reamers, taps, and broaches. Their hardness and strength at high temperatures make them suitable for machining high-strength alloys, stainless steels, and non-ferrous metals. T1 is also good for die-making, cold forming tools, and gear cutting tools. In the automotive, aerospace, and heavy machinery sectors, it’s preferred for tools that need a long service life and precision. Dhruv Metals provides T1 Bars that ensure steady performance in high-speed, high-temperature cutting situations, lowering downtime and tool replacement costs.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Dhruv Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hyderabad , India
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