Passivating stainless steels with citric acid
Passivating stainless steels with citric acid

Passivating stainless steels with citric acid

Alternatively, the surface treatment can also be carried out with citric acid. Corrosion studies show that passivation solutions with citric acid can achieve similar, and in some cases even higher, corrosion resistance compared to passivation solutions with nitric acid. Passivation according to AMS 2700, ASTM A-967, A380, and various factory standards. Nitric acid is standardly used for passivating stainless steel; alternatively, the surface treatment can also be carried out with citric acid. Corrosion studies show that passivation solutions with citric acid can achieve similar, and in some cases even higher, corrosion resistance compared to passivation solutions with nitric acid. For this purpose, the passivation solution with citric acid and the process parameters are specifically tailored to the material.
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