Toolman Special Steels is proud to produce and offer T15 (1.3202) - a high tungsten alloy grade for high performance cutting tools. T15 steel high vanadium content enhances its cutting performance and durability, while its cobalt content contributes to superior tempering durability and hot hardness. This steel has demonstrated significant advantages in applications involving hard materials that cause extensive wear on cutting surfaces, especially under elevated temperatures.
Steel Properties
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High Toughness & Ductility
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High Wear Resistance
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Very high Compressive strength
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Very high Edge Stability
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High Grindability
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Very high Hot Hardness
Chemical Composition
| Element | Value |
|---|---|
| C | 1.50 |
| Cr | 5.00 |
| Mo | - |
| W | 12.5 |
| Co | 5 |
| V | 5 |
Mechanical Properties
| Property | Value |
|---|---|
| Hardness (HB) | 300 max (Annealed) |
| Quenching and Tempering Hardness (HRC) | 65 - 69 |
Physical Properties
| Property | Value |
|---|---|
| Density (g/cm³) | 8.2 |
Modulus of Elasticity
| Temperature (°C) | kN/mm² |
|---|---|
| 20 | 245 |
Thermal Properties
| Temperature (℃) | Thermal Expansion Coefficient (10^-6/°C) |
|---|---|
| 500 | 11.64 |
| 600 | 12.08 |
Thermal Conductivity
| Temperature (℃) | Thermal Conductivity (W/m•K) |
|---|---|
| 20 | 24 |
HEAT TREATMENT AND PROCESSES
Heat treatment
| Process | Temperature (°C) | Details | Cooling Method |
|---|---|---|---|
| Soft Annealing | 850-900 | Heat to 850 - 900°C | Cool slowly at 10°C/h to about 700°C, then air cool |
| Stress Relieving | 600-700 | Heat to 600-700°C, hold for 2 hours | Cool in still air. Slow cooling down to 500°C |
| Hardening | 1st Step: 450-500 | Preheat in 2 steps: 450-500°C, then 850-900°C | Quench in oil, warm bath, or air |
| 2nd Step: 850-900 | Heat to 1210-1240°C for high hardness, 1190-1210°C for toughness | ||
| Tempering | 560- 580 | Tempering at 560°C three times for at least 1 hour each time | Cooling to room temperature (25°C) between temperings. |
Applications
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Automotive Racing
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Broaches and Reamers
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Cold Forming / Coining
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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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Powder Pressing
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Rolling
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Shearing / Machine Knives
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Special Cutting Tools
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Twist Drills and Taps
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Pill punching dies
Quality Assurance
Our T15 1.3202 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 T15 1.3202 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 |
Frequently Asked Questions
T15 / DIN 1.3202 / AISI T15 is a high-tungsten alloy high speed steel developed for high-performance cutting tools. Toolman states that its high vanadium content supports cutting performance and durability, while cobalt contributes to tempering durability and hot hardness.
Toolman lists high toughness and ductility, high wear resistance, very high compressive strength, very high edge stability, high grindability and very high hot hardness among the principal properties of T15.
Toolman lists T15 for broaches and reamers, end mills, gear-cutting and shaping tools, twist drills, taps, machine knives, cold forming, coining, fine blanking, stamping, powder pressing, rolling, special cutting tools and pill-punching dies. Automotive racing is also listed among its applications.
It has a maximum annealed hardness of 300 HB and a quenching-and-tempering hardness range of 65–69 HRC for T15 steel.
Toolman specifies soft annealing at 850–900°C and stress relieving at 600–700°C. Hardening includes preheating at 450–500°C and 850–900°C, followed by heating to 1210–1240°C for high hardness or 1190–1210°C for toughness. Tempering is specified at 560–580°C, with three tempering cycles at 560°C for at least one hour each.
Toolman offers T15 with 1.50% carbon, 5.00% chromium, 12.5% tungsten, 5% cobalt and 5% vanadium. Molybdenum is shown as not added in its published composition table.
Toolman offers T15 rounds from 6–405 mm, squares from listed HRA sizes between 7.2 and 40 mm and forged-annealed squares from 52–305 mm. Flats range from 5–105 mm thickness and 21–205 mm width. Toolman also states that certificates and test reports are available upon request.
