Designation
Indicatory analysis:
C | 2.45 |
Si | 0.90 |
Mn | 0.50 |
Cr | 5.20 |
Mo | 1.30 |
V | 9.75 |
Strength:
max. 280 HB
(≈ max. 960 N/mm²)
Thermal conductivity at 100 °C:
20 W/m K
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:
Blocks for eroding, dies and cutting punches with extreme requirements,
fine blanking punches, pressing punches for sinter press tools
Treatment by
highly suitable:
Polishing, nitriding, EDM, coating
Heat treatment:
Soft annealing:
880 to 900 °C, about 2 to 5 hours
slow controlled cooling of 10 to 20 °C per hour
to about 600 °C; further cooling in air, max. 280 HB
Hardening:
Curing temperature: see tempering chart
quenching in oil/compressed gas/air/hot bath
obtainable hardness: 60-63 HRC
Tempering:
slow heating to tempering temperature (to avoid forming of cracks)
immediately after hardening;
triple tempering is recommended
Tempering chart:
TechnicalTip
- 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.
Vers l’aperçu de la construction de moules
Vers l’aperçu de la construction d'outils de découpe