Stainless steel heat exchangers are pickled using salt and acid
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Can stainless steel heat exchangers be pickled with salt and acid? Will it cause subsequent corrosion problems?
Corrosion will occur; halogens are very harmful to stainless steel
Then can’t salt or acid be used to clean stainless steel heat exchangers?
No, there are products available on the market designed for cleaning stainless steel!
It’s definitely not possible. For stainless steel pipelines, when testing for water pressure, it is specified that the chloride content in the water must not exceed 50 ppm; therefore, using salt acid is certainly not an option
It can be cleaned with 2.5% salt acid, and finally rinsed thoroughly with deionized water
Salt and acid cannot be used, as they will cause chloride corrosion
Chloride ions cause the most severe corrosion of stainless steel; salt acids cannot be used. There is now a citric acid treatment technique that does not contain *ao acid or hydrofluoric acid; it requires specialized equipment for use, operates on the principle of electrochemical reactions, the acid does not harm the skin, and the waste liquid can be discharged directly without causing environmental pollution.