The nature of rust is actually an oxidation reaction. Iron is an extremely chemically active element, but iron itself does not react with water. Only when the oxygen in the air is dissolved in water, the iron is oxidized by the oxygen in the water to generate iron oxide.
The chemical resistance of stainless steel filters is chemical and electrochemical corrosion resistance is the best in steel, second only to titanium alloys. The physical properties are heat resistance, high temperature resistance, low temperature resistance and even ultra-low temperature resistance. Therefore, stainless steel is generally not easily corroded, but under the conditions below, stainless steel will still corrode.
In fact, the stainless steel wire mesh has relative rust prevention capabilities. Its "stainless" capability is relative to ordinary wire mesh. On the other hand, whether or not the stainless steel wire mesh is stainless depends on its medium. We generally say that Stainless steel filters are common stainless steel filters that resist rust in the air or in weak media. Ordinary stainless steel filters have the ability to resist atmospheric oxidation - that is, stainless, but also have the ability to resist corrosion in media containing acid, alkali, and salt - that is, corrosion resistance. But its corrosion resistance is changed with its grade and environment. For example, the 304 stainless steel filter has absolutely excellent anti-corrosion ability in a dry and clean atmosphere, but it is moved to the seashore where it contains a lot of salt. A portion of the sea fog will soon rust, while the 316 stainless steel filter will perform well.
Therefore, not any type of stainless steel wire mesh can resist corrosion and rust in any environment. In this regard, stainless steel filter users, especially in the strong corrosive environment such as acid and alkali, must choose the appropriate stainless steel wire mesh products.