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Precipitation Harden Or Age Hardening

Precipitation Hardening or Age Hardening. There are certain alloys [commonly some types of stainless steels, Aluminium and copper-based alloys] that will through harden by this method. The treatment typically involves a solution treatment which is carried out at high temperature followed by one or more ageing treatments at lower temperatures to achieve the correct hardness [Note. The material only hardens after the ageing treatment].

Care must be taken to purchase the material in the best state for manufacturing the component and ensuring that this information is communicated to the heat treater.

Typical states for purchasing Precipitation hardened alloys would be:-

Care should be taken in specifying the ageing condition as this can often effect the corrosion resistance.

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