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Extreme Performance HSS
M42/DIN 3247 / AISI M42/
M42 is a cobalt-bearing high speed steel engineered for exceptional hot hardness and superior wear resistance under extreme conditions. It maintains high cutting performance even at elevated temperatures, making it ideal for long-run high-production operations. With high compressive strength and excellent edge retention, M42 is designed to machine tough materials, including stainless steels and high-alloy heat-resistant steels, while significantly reducing tool change frequency in severe machining environments.
Key Features
- Exceptional red hardness at speeds
- Superior wear resistance in hard metals
- High compressive strength
- Strong edge for precision tools
- Exceptional heat treatment stability
Typical Applications
- Heavy-duty drills and reamers
- High-performance end mills
- Broaches and special cutting tools
- Gear hobs and milling cutters
- Tools for aerospace alloy machining
Chemical Composition (%)
| Carbon (C) | Chromium (Cr) | Tungsten (W) | Molybdenum (Mo) | Vanadium (V) | Cobalt (Co) | Iron (Fe) |
|---|---|---|---|---|---|---|
| 1.05-1.15 | 3.50-4.25 | 1.15-1.85 | 9.00-10.00 | 1.00-1.35 | 7.75-8.75 | Balance |