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THE PROCESS

 

As an important alloying element for the hardness of steel, carbon is diffused into case-hardened steels at approximately 900°C via gases or salts that give off carbon. In order to case harden unalloyed steels, such as machining or construction steel, nitrogen is needed in addition to carbon. This process is called carbonitriding.

 

The depth to which the carbon atoms penetrate the surface layer of the work pieces can be controlled precisely. 0.3 mm – 1.5 mm are standard case hardening depths. Higher case hardening depths are also available on request. Subsequent hardening leads to extremely hard and wear-proof surfaces. The surface has very good wear and fatigue strength.

 

BENEFITS

 

- unalloyed steel, such as machining and construction steel, can be hardened on the surface

- good wear protection on the surface of the work piece

- elastic, soft core

- risk of fracture in the components significantly reduced

- hardening for partial areas possible

 

Download process as pdf

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