Products
Characteristics
Designation
Strength
max. 280 HB
(≈ max. 960 N/mm²)
Chemical composition
Thermal conductivity at 100 °C
20 W/(mK)
Character
Powder metallurgical high-speed steel with optimal dimensional accuracy after the heat treatment
Highest abrasive wear resistance and excellent toughness
Good machinability through a homogeneous microstructure
Application
Machining
Ideally suited:
Polishing, nitriding, EDM, coating
Use
Blocks for eroding, die plates and cutting punches with extreme requirements, fine blanking punches, pressing punches for sinter press tools
Heat treatment
Soft annealing:
880 to 900 °C, about 2 to 5 hours
Slow, controlled cooling inside the furnace of 10 to 20 °C per hour to about 600 °C
Further cooling in air, max. 280 HB
Hardening:
Curing temperature: see tempering graph
Quenching in oil/compressed gas/air/hot bath
Obtainable hardness: 60−63 HRC
Tempering:
Slow heating to tempering temperature (in order to avoid the formation of cracks) immediately after hardening
Triple tempering is recommended
Technical tip
- Due to the high vanadium content, the steel is enriched with small, hard carbides. This guarantees optimum edge stability with maximum abrasive wear resistance.
- Ideally suitable for highly stressed parts with complicated geometries.
