Although stainless steel heat exchange tubes have good corrosion resistance, they are not completely immune to corrosion. If the use conditions of stainless steel heat exchange tubes are relatively bad, or the storage method is improper, they will cause rust.
In order to prevent stainless steel heat exchange tubes from being corroded, the following methods are introduced to you:
1. Choose stainless steel heat exchange tube materials with better performance. For example, duplex stainless steel tubes have higher corrosion resistance and strength than ordinary austenitic stainless steel tubes, and the probability of corrosion is also smaller.
2. Electrochemical protection. Use an external DC power supply to convert the anode on the metal surface into a cathode, or connect the protected equipment to the anode of the external power supply to form a passivation film.
3. Anti-corrosion coating. Apply anti-corrosion paint on the inside and outside of the stainless steel heat exchange tube to form an anti-corrosion coating.
4. Add corrosion inhibitor. Adding a small amount of corrosion inhibitor to the corrosive medium can also reduce the probability of stainless steel heat exchange tubes being corroded.