Excessive chloride content and its corrosion effect on stainless steel
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Our company specializes in heat exchangers. Last year, the heat exchange tubes in the 304 welded tube heat exchangers we manufactured for a client were all corroded; tests showed that the chloride ion concentration was 5600 mg/L. What material should be used in such cases?
The chloride content is high; there is no truly pure austenitic stainless steel.
For the heat exchanger, what fluids flow through the tube side and the shell side respectively?
Hot medium oil flows in the tube side, while cooling water flows in the shell side
Hot medium oil flows in the tube side, while cooling water flows in the shell side
The Mo content in 316L endows this steel grade with excellent pitting resistance, allowing it to be safely used in environments containing halide ions such as Cl-
316L won’t last long either; it’s necessary to switch to 2507
Is there no circulating water station? Why is the chloride level in the cooling water so high? Cooling water has chlorine ions immobilized by the addition of chemicals.