Forms Of Stainless Steel Rust

1.On the surface of stainless steel, there are deposits of dust or heterogeneous metal particles containing other metal elements. In humid air, the condensed water between the deposits and the stainless steel connects the two into a micro-battery, which triggers an electrochemical reaction. , The protective film is damaged, which is called electrochemical corrosion. 

2. The surface of stainless steel adheres to organic juices (such as vegetables, noodle soup, sputum, etc.), which constitute organic acids in the presence of water and oxygen, and organic acids will corrode the metal surface for a long time. 

3. The surface of stainless steel adheres to substances containing acids, alkalis and salts (such as lye water and lime water splashing from decoration walls), causing local corrosion. 

4. In polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide, nitrogen oxide), when encountering condensed water, it will form sulfuric acid, nitric acid, and acetic acid liquid points, causing chemical corrosion.

The above conditions can cause damage to the protective film on the stainless steel surface and cause rust.