Heat treatment

Heat treatment in the field of metal processing generally describes methods to obtain favourable technological properties of materials at high temperatures.


In the manufacturing process of HAY Automobiltechnik products, various heat treatment methods are applied with a total capacity of over 100,000 tons per year. Depending on to the required properties, and under consideration of the specific materials, formed components are treated by controlled cooling or in the course of additional subsequent heat conduction.


Heat treatment procedures at Hay:

Controlled cooling (BY) directly from the forging heat
Isothermal annealing (BG)
Quench and temper
Soft annealing
Stress relief annealing