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How to prevent pitting corrosion of stainless steel decorative pipes?

by:HHGG     2021-04-06
How to prevent pitting corrosion of stainless steel decorative pipes? 2020-02-23    The individual points on the surface of the stainless steel decorative pipe corrode and then expand in depth. The pitting corrosion on the outer surface of the stainless steel pipe during use is called pitting corrosion. Stainless steel decorative pipe manufacturers analyze the causes of pitting corrosion on the surface of stainless steel decorative pipes: 304 stainless steel pipes, stainless steel pipes pitting corrosion reasons:    stainless steel pipes pitting corrosion mainly occurs in aqueous solutions containing halogen ions, such as Cl-, Br-, F-, etc. Medium. Pitting corrosion is caused by these active ions destroying the passive film on the weak part of the passive film on the surface of the stainless steel tube. If there are iron particles, dust, dirt and other attachments on the surface of stainless steel, as well as MnS and other inclusions and some intermetallic compounds, pitting corrosion is also easy to occur.   Stainless steel pipe pitting corrosion prevention measures:    Then there are measures to prevent pitting corrosion of stainless steel pipes. Which? We can clean and maintain the surface of stainless steel pipe regularly; improve the purity of steel and reduce the content of non-metallic inclusions such as MnS; select stainless steel pipes with high pitting resistance equivalent value, namely high chromium, molybdenum and high chromium, molybdenum, Nitrogen stainless steel. In any medium containing Cl- and seawater, increase the flow rate ≥1.5m/s to prevent sediment and marine organisms from adhering to the surface of the stainless steel pipe. Stainless steel decorative pipe    The above is the reason and prevention method of pitting corrosion on the surface of stainless steel decorative pipe organized by the editor. I hope it can be helpful to everyone.  
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