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HARDENING
Case hardening
In case hardening, a hard surface layer is produced with a tough core by enriching the edge zone of the component with carbon and then quenching it in an oil bath.
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Advantages of the process
Hardening of
partial areas
Precisely defined areas of the component can be hardened by covering the other surfaces with a hardening protection paste.
Outstanding component properties
Case hardening produces components with both a tough core and a hard, wear-resistant surface.
The hardening process for special requirements
Case hardening produces components that combine two valuable properties: a robust, wear-resistant surface and a tough core.
The process consists of carburising, hardening and tempering the component and enables the advantageous combination of a hard, wear-resistant surface with a tough core. Previously defined partial areas can also be hardened. For this purpose, we cover the areas that are to remain soft with a special hardening protection paste.
The surface layer of the workpiece is enriched with carbon in a suitable carburising medium. After carburising and the hardening process, tempering is carried out. This reduces internal stresses in the steel and sets the surface hardness and case hardening depth.
Case hardening produces a carburised surface area with 0.6 to 0.8 per cent carbon and surface hardnesses between 55 and 62 HRC. The carbon content decreases continuously towards the core. Suitable materials are so-called case-hardening steels such as 1.7131 with carbon contents of less than 0.25 per cent by mass.
Key figures
Temperature:
up to 1.000 °C
Oven size:
1000 x 600 x 550 mm
Turnaround time
from 48 h
Hardening depth:
up to 2 mm
Max. loading weight*:
600 kg
*per batch for standard sizes and treatments
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Request a quote
Request a free and non-binding
offer from us now!
Information!
For the preparation of your individual offer
we need the following information from you:
- Material
- Weight and quantity
- Desired surface hardness
- Desired case hardening depth (CHD, Eht) with tolerance field
- Information about areas not to be hardened
For partial case hardening, the areas that are to remain soft must be clearly labelled on the component drawing.
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Do you have any questions?
The HTR team will be happy to advise you!