Why does the stainless steel mesh get rusty?
Stainless steel has the ability to resist atmospheric oxidation and also has the ability to resist corrosion in the medium containing acid, alkali, and salt.
Why does stainless steel rust? Stainless steel rusts when the dense protective oxide layer is destroyed.
Then there are several reasons why stainless steel rusts:
1. When the dust of other metal elements or the attachment of dissimilar metal particles accumulates on the surface of stainless steel, electrochemical corrosion is easy occurs, resulting in rust.
2. When organic juice (such as vegetables, sputum, etc.) is attached to the surface of stainless steel, organic acid will be formed under the action of water and oxygen, and it will be corrosive for a long time.
3. When acid, alkali, and salt (such as alkaline water, lime, etc.) are attached to the surface of stainless steel, it is very easy to cause local corrosion.
4. When the air contains sulfide, carbon oxide, etc. (that is, polluted air), it will form sulfuric acid, nitric acid, etc. when it encounters condensed water, which will also cause chemical corrosion.
