Reasons for the discoloration of stainless steel plates
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Is it normal for the inner wall of a tank made of 316L to become like this after four years of use? What is the reason?
What types of substances and operating conditions are being stored?
Confirm? How to solve this problem?
Once the passivation is done properly, it will be much better
Before use, the inner wall must be properly passivated; if it remains untreated and comes into contact with hydrogen peroxide, which is a strong oxidizing agent, it will turn black