Rupal Metals, a leading manufacturer and supplier from Delhi, India, is well known for providing quality High Speed Steel M35 Bars of high performance. These bars are manufactured in accordance with the demanding needs of the manufacturing, tooling, and engineering industries. Rupal Metals is dedicated to precision, quality, and strength with a commitment to utilizing advanced technology and rigorous quality testing to ensure every M35 bar meets high standards. Their extensive product line, good service, and on-time delivery have earned them a reputable name in the industry. Rupal Metals continues to serve both domestic and international markets with excellence and integrity in material supply.
High Speed Steel M35 Bars are alloyed with about 0.9% carbon, 4.8% chromium, 5% cobalt, 6.3% tungsten, 2% molybdenum, and 1.9% vanadium. The presence of cobalt improves red hardness and hot hardness, thus M35 is suitable for high-speed cutting tools. The bars possess good wear resistance, toughness, and cutting efficiency. They are generally hardened to a level of about 64–66 HRC through heat treatment. M35 even retains its strength and cutting capacity at high temperatures, rendering it reliable in performance withstanding high mechanical stress and thermal loads.
| ASTM A600 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| M35 | 0.82 | 0.95 | 0.15 | 0.40 | 0.03 | 0.03 | 0.20 | 0.45 | 3.80 | 4.50 | 1.75 | 2.15 | 4.75 | 5.25 | 5.50 | 6.50 | 4.60 | 5.00 |
| DIN ISO 4957 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| 1.3243/HS6-5-2-5 | 0.87 | 0.95 | … | 0.40 | 0.03 | 0.03 | … | 0.45 | 3.80 | 4.50 | 1.70 | 2.10 | 4.70 | 5.20 | 5.90 | 6.70 | 4.50 | 5.00 |
| JIS G4403 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| SKH55 | 0.87 | 0.95 | … | 0.40 | 0.03 | 0.03 | … | 0.45 | 3.80 | 4.50 | 1.70 | 2.10 | 4.70 | 5.20 | 5.90 | 6.70 | 4.50 | 5.00 |
| Temperature °C / °F | |||||||
| 20 / 70 | 400 / 750 | 600 / 1110 | |||||
| Density | Kg/m³ lbs/in³ | 8150 .294 | 8050 .290 | 7990 .228 | |||
| Modulus of Elasticity | kN/mm³² psi | 230 34 · 10 6 | 205 31 · 10 6 | 184 27 · 10 6 | |||
| Coefficient of Thermanl expansion from 20°C / 70°F | per °C per °F | – | 11.6 · 10-6 6.4 · 10-6 | 11.9 · 10-6 6.6 · 10-6 | |||
| Thermal Conductivity | W/m °C Btu/sq. ft. h °F/in. | 24 166 | 28 194 | 27 187 | |||
| Specific Heat | J/kg °C Btu/lb °F | 420 0.10 | 510 0.12 | 600 0.14 | |||
| Country | USA | German | Japan |
| Standard | ASTM A600 | DIN EN ISO 4957 | JIS G4403 |
| Grades | M35 | 1.3243/HS6-5-2-5 | SKH55 |
| Thermal properties | Metric | Imperial |
| CTE, linear (@21 – 399°C / 69.8 – 750°F) | 11.4 μm/m°C | 6.33 μin/in°F |
| CTE, linear (@21 – 593°C /69.8 – 1100°F) | 11.5 μm/m°C | 6.39 μin/in°F |
| Type | SIZES (mm) | SIZES (Inches) | ISO Tolerance |
|---|---|---|---|
| Cold Drawn and Ground | 10.00 – 75.00 | 5/6″ – 2.50″ | h8-h9-h10-h11 |
| Peeled and Polished | 40.00 – 150.00 | 1.50″ – 6.00″ | h11, h11-DIN 1013 |
| Peeled and Ground | 20.00 – 50.00 | 3/4″ – 2.00″ | h9-h10-h11 |
| Cold Drawn and Polish | 3.00 – 75.00 | 1/8″ – 3.00″ | h8-h9-h10-h11 |
Yes, High-Speed Steel M35 can be welded, but it requires careful control of heat and preheating. Post-weld heat treatment is often necessary to restore its hardness and performance.
Yes, High-Speed Steel M35 bars can be customized in terms of dimensions, shape, and surface finish. Machining and heat treatment processes can also be tailored to meet specific performance requirements.
High Speed Steel M35 Bars are applied extensively in the manufacturing of high-performance cutting tools like drill bits, milling cutters, taps, and reamers. Their hardness at elevated temperatures makes them suitable for machining hard alloys and metals. They are also utilized in aerospace, automotive, and defense sectors for creating precise components with high wear resistance and dimensional stability. Moreover, M35 bars are preferred in cold work operations and tool production where durability, performance, and survivability under harsh conditions are critical.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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