Why Stainless Steel Can't Avoid Rust?

- Mar 16, 2018 -

Why Stainless steel rust?

  1. The stainless steel surface contains deposits of dust or other dissimilar metal particles containing other metal elements. In humid air, the condensate between the attached material and stainless steel is connected into a micro battery to initiate the electrochemical reaction. The protective film is damaged, which is called electrochemical corrosion.

  2. The surface of stainless steel adheres to the organic matter juice (such as melon vegetables, noodles, soup, etc.). In the presence of water and oxygen, organic acids are formed, and organic acids will corrode metal surfaces for a long time.

  3. The surface of the stainless steel adheres with acids, alkalis, and salts (such as alkaline water and gray water splashes on the wall), causing localized corrosion.

  4. In contaminated air (such as an atmosphere containing a large amount of sulfides, carbon oxides, and nitrogen oxides), condensation occurs and sulfuric acid, nitric acid, and acetic acid liquids form, causing chemical corrosion.

 Suggestion when use:

 1. The surface of the decorative stainless steel must be cleaned and scrubbed frequently to remove attachments and eliminate the external factors that cause the modification.

  2. The sea area uses 316L stainless steel, which is resistant to seawater corrosion. 201 or 304 is not suitable for seawater area.

  3. The chemical composition of some stainless steel pipes on the market cannot meet the corresponding national standards and cannot meet the 304 material requirements. It will also cause rust, which requires the user to carefully select products from reputable manufacturers.

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So pls select the professional supplier to supply good quality product.

Contact: Una Chen


Email: xc01@xichustainless.com

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