High Speed Steel M35
Description
Din 1.3243 is cobalt content material in these high-performance excessive-speed steel results in high pink hardness and tempering resistance. As a final result, this grade is primarily suitable for conditions involving thermal stresses and discontinuous cutting. This grade is typically used as heavy-duty milling cutters of every kind, particularly stressed twist drills and taps, profile knives, machining of high-strength substances, broaches.
Chemical Composition
| C | Cr | Mo | V | W | Co |
|---|---|---|---|---|---|
| 0.92 | 4.1 | 5 | 1.9 | 6.4 | 4.8 |
Standards
| M35 | BM35 | 1.3243 | SKH55 | AFNOR Z85WDCV06-05-04-02 |
Steel Properties
- The cobalt content in this high-performance high-speed steel results in high red hardness and tempering resistance.
- This grade is particularly suitable for conditions involving thermal stresses and discontinuous cutting.
- It has High Wear Resistance and Cutting Ability as compared to other grades of High Speed Steel.
- M35 has Fine Grain Size and Carbide Particle Size.
Applications
- Forging Dies
- Cold Forming Dies
- Hobs
- Twist Drills
- Milling Cutter
- Taps
- Punches
- Trimming Dies
| Soft annealing °C | Cooling | Hardness HB |
|---|---|---|
| 820 – 860 | Furnace | max. 269 |
| Stress-relief annealing °C | Cooling |
|---|---|
| 630 – 650 | Furnace |
| 1st pre-heating C | 2nd and 3rd | Hardening1 °C Quenching Tempering °C Hardness after pre-heating °C pre-heating °C tempering HRC | |||
|---|---|---|---|---|---|
| up to approx. 400 in an air-ciculating furnace | a) 850 | 1190-1230 | a) Saltbath, 550C | at least three times | 64-67 |
| b) 850 and 1050 | b) Oil | 540-570 | |||
| c) Air | |||||
