Martensitic hardening, quenching and tempering of steel is carried out in three process steps: austenisation, quenching and then tempering. The martensitic structure is distinguished by its very high hardness after the hardening process. Autenisation is carried out at temperatures of 800 - 1,050°C under an active protective gas atmosphere followed by quenching in a warm salt bath. The specified properties are created by the additional tempering stage at temperatures of up to 700°C. The particular focus lies on improving the durability, the dynamic load-bearing capacity and reducing the internal stress in the parts.
APPLICATION AREAS
- Cutting tools
- Attachment elements
- Tools
- Roller bearings / ball bearings
PROPERTIES
- High level of hardness and strength
- Production of defined hardness and durability
- Fine-grain structure
Lot size
Max. diameter
1.300 mm
Max. height incl. top grate
670 mm
Lot weight
Max. weight
900 kg
Temperature ranges
Hardness temperature
800 - 1.050 °C
Quenching and holding in a warm salt bath
180 - 220 °C
Tempering by means of
150 - 700 °C