Tuff Mesh will also rust under certain conditions. Stainless steel has the ability to resist atmospheric oxidation—that is, rust resistance, and it also has the ability to corrode in media containing acids, alkalis, and salts—that is, corrosion resistance. However, the size of its anti-corrosion ability varies with the chemical composition of its steel itself, the state of mutual addition, the conditions of use and the type of environmental media.

For example, 304 stainless steel mesh has excellent anti-corrosion ability in a dry and clean atmosphere, but if it is moved to the seaside area, it will rust quickly in the sea fog containing a lot of salt; while the 316 steel pipe shows good. Therefore, it is not any kind of stainless steel. Stainless steel that is resistant to corrosion in any environment and does not rust depends on a very thin, firm and fine stable chromium-rich oxide film (protective film) formed on its surface to prevent the continuation of oxygen atoms. Infiltrate, continue to oxidize, and obtain the ability to resist rust. Once for some reason, this film is continuously damaged, oxygen atoms in the air or liquid will continue to infiltrate or iron atoms in the metal will continue to separate out, forming loose iron oxide, and the metal surface will be continuously corroded.