Stainless Steel General Corrosion: A term used to describe the phenomenon of corrosion that occurs in a relatively uniform manner over the entire surface of the alloy. When general corrosion occurs, the material gradually becomes thinner due to corrosion, and even the material fails due to corrosion. Stainless steel may exhibit general corrosion in strong acids and alkalis. Failure problems due to general corrosion are less of a concern, as this corrosion can usually be predicted by a simple immersion test or by consulting literature on corrosion.
Uniform corrosion: refers to the phenomenon that all metal surfaces in contact with corrosive media are corroded.
According to different use conditions, different requirements for corrosion resistance are put forward, which can generally be divided into two categories:
1. Stainless steel refers to steel that is resistant to corrosion in the atmosphere and weakly corrosive media. If the corrosion rate is less than 0.01mm/year, it is considered to be "completely resistant to corrosion"; if the corrosion rate is less than 0.1mm/year, it is considered to be "corrosion resistant".
2. Corrosion-resistant steel refers to steel that can resist corrosion in various strongly corrosive media.
