Toolman Special Steels is proud to produce and offer M35 (1.3243). It is medium alloy high speed steel and has better thermal hardness and wear resistance with better machinability than M2, because cobalt is added to it. . It features a strong cutting edge with good toughness, a deep hardening response, and maintains high hot hardness properties.
Steel Properties
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Good high temperature hardness
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High wear resistance
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High cutting ability
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Fine and uniform grain size
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High resistance of cutting edge and good toughness.
Good machinability
Chemical Composition
| Element | Value |
|---|---|
| C | 0.92 |
| Cr | 4.10 |
| Mo | 5.00 |
| W | 6.00 |
| Co | - |
| V | 4.80 |
Mechanical Properties
| Property | Value |
|---|---|
| Hardness (HBW) | 268 max (Annealed) |
| Quenching and Tempering Hardness (HRC) | 65 min |
| Tensile Strength (N/mm²) | 980 max |
Physical Properties
| Property | Value |
|---|---|
| Density (g/cm³) | 8.1 |
Modulus of Elasticity
| Temperature (°C) | kN/mm² |
|---|---|
| 20 | 217 |
Thermal Properties
| Temperature (℃) | Thermal Expansion Coefficient (10^-6/℃) |
|---|---|
| 500 | 12.7 |
| 600 | 13 |
Thermal Conductivity
| Temperature (℃) | Thermal Conductivity (W/m•K) |
|---|---|
| 20 | 19 |
HEAT TREATMENT AND PROCESSES
Heat treatment
| Heat Treatment Process | Temperature (°C) | Details | Resulting Hardness |
|---|---|---|---|
| Soft Annealing | 820-880 | Heat uniformly, hold until soaked, cool slowly in furnace. | Brinell hardness of 230-300 HB |
| Stress Relieving | 650 - 700 | Heat to specified temperature, hold for 1 hour, air cool. Reduces machining stresses to minimize distortion during further heat treatment. | |
| Hardening |
|
Preheat to 450-600, then to 850, and finally to 1050. Harden from 1210-1250 followed by oil, air quenching, or warm bath at 550. | 64-66 HRC after quenching |
| Tempering | 540-570 | Reheat to specified temperature, hold for 1 hour (repeat 3 times). |
| Tempering °C | HRC |
|---|---|
| 200 | 63 |
| 300 | 61 |
| 400 | 62 |
| 500 | 64 |
| 525 | 64.5 |
| 550 | 65 |
| 575 | 64 |
| 600 | 63 |
| 650 | 55 |
| 700 | 46 |
Applications
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Broaches and Reamers
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End Mills Gear Cutting
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Shaving and Shaping Tools
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• Twist Drills and Taps
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Special Cutting Tools
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Blades for Sawing Machines
Profile Cutting Tools
Quality Assurance
Our M35 1.3243 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 M35 1.3243 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 |