Passivation

Chemical treatment to prevent the increase in surface thickness of all types of stainless steel due to the natural occurrence of chromium-rich oxide films

Passivated state

A state of inactive chemical reaction on the surface of stainless steel

The passivation process

Cleaning - pickling - passivation

Note: The passivation and pickling processes are similar, the differences are in the chemicals chosen and the concentration of the chemicals, temperature and soaking time

Inspection of passivation

There is no universal passivation test method available