Toolman Special Steels is proud to produce and offer T42 (1.3207) - a proprietary tungsten high speed steel containing 10 percent cobalt. T42 is harder than most high-speed steels and has in addition a reasonably good toughness. T42 is used mainly for tools requiring maximum abrasion resistance and medium toughness.
Steel Properties
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High Toughness & Ductility
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High Wear Resistance
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Good Compressive strength
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High Edge Stability
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Hot Hardness (red hardness)
Chemical Composition
| Element | Value |
|---|---|
| C | 1.26 |
| Cr | 4.00 |
| Mo | 3.60 |
| W | 9.30 |
| Co | 10 |
| V | 3.20 |
Mechanical Properties
| Property | Value |
|---|---|
| Hardness (HB) | 300 max (Annealed) |
| Quenching and Tempering Hardness (HRC) | 64 - 67 |
Physical Properties
| Property | Value |
|---|---|
| Density (g/cm³) | 8.23 |
Modulus of Elasticity
| Temperature (°C) | kN/mm² |
|---|---|
| 20 | 217 |
Thermal Properties
| Temperature (℃) | Thermal Expansion Coefficient (10^-6/°C) |
|---|---|
| 500 | 10.5 |
| 600 | 10.7 |
Thermal Conductivity
| Temperature (℃) | Thermal Conductivity (W/m•K) |
|---|---|
| 20 | 19 |
HEAT TREATMENT AND PROCESSES
Heat treatment
| Process | Temperature (°C) | Details |
|---|---|---|
| Soft Annealing | 800-860°C | Heat to 800-860°C, cool slowly in furnace. Maximum Brinell hardness of 300. |
| Stress Relieving | 600-650°C | Heat to 600-650°C, hold for 1 hour, air cool. Reduces machining stresses to prevent distortion. |
| Hardening | 1200-1230°C | Harden from 1200-1230°C followed by quenching in oil, air, or a warm bath at 540°C. Hardness after quenching: 64-66 HRC. |
| Tempering | 540-570°C | Temper at 540-570°C at least twice for 65-67 HRC. Hardness after tempering: 64-67 HRC. |
| Tempering °C | HRC |
|---|---|
| 100 | 65 |
| 200 | 64.5 |
| 300 | 64 |
| 400 | 64.5 |
| 500 | 67 |
| 550 | 66.5 |
| 600 | 63 |
| 650 | 57 |
Applications
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End Mills
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Fine Blanking, Stamping, Blanking
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Gear Cutting, Shaving and Shaping Tools
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Special Cutting Tools
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Blades for Sawing Machines
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Broaches and Reamers
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All kinds of profile blades for wood machining are manufactured from sheets.
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For severely stressed tools for fine and roughing work
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Wood working tools and tools for cold work.
Quality Assurance
Our T42 1.3207 steel undergoes rigorous testing and quality control to meet international standards, ensuring consistent performance and reliability. Certificates and test reports are available upon request. Feel free to reach out to us for more information on our T42 1.3207 steel products or to discuss your specific requirements. We're dedicated to providing top-quality steel solutions that meet your needs and exceed your expectations.
Manufacturing Range
| ROUNDS | SQUARES | ||
|---|---|---|---|
| SIZE (MM) | CONDITION | SIZE (MM) | CONDITION |
| 6.00 - 14.00 | CG | 7.2, 8.8, 10.5, 11 | HRA |
| 15.00 - 50.00 | HRAP | 13.5, 14, 17.5, 21 | HRA |
| 52.00 - 405.00 | FAT | 27, 32, 40 | HRA |
| 52.00 - 305.00 | FA |
Flats
| THICKNESS | WIDTH | CONDITION |
|---|---|---|
| 5.00 - 32.00 | 21.00 - 105.00 | HRA |
| 32.00 - 105.00 | 40.00 - 205.00 | FA |