HMW Härterei Michael Welser

Gas nitriding and nitrocarburizing

Gas nitriding & nitrocarburizing

Better wear resistance and surface hardness

Both gas nitriding and gas nitrocarburizing are thermochemical surface hardening methods which improve wear resistance, fatigue strength and surface hardness.

Gas nitrocarburizing serves primarily to improve the frictional properties of the material. This method of treatment is used particularly frequently in a wide variety of drive components and functional parts, which are exposed to high frictional wear. It is also used to improve fatigue resistance.

The advantages of the process are expressed in improved wear, scratch, and scuffing resistance. This is caused by the resulting compressive stress in the surface, which also has an improved fatigue strength result.

The treatment temperature is lower than during hardening, which results in a very small distortional change.


Loyal HMW partners know that we use the Christmas holidays every year to carry out maintenance and repair work.
We will therefore be closed again this year from 23.12.2023 to 01.01.2024.

Neither collections nor deliveries are possible during this period.
Last delivery: 22.12.2023

We will be back for you on 02.01.2024.