Subconsciously, we all think that stainless steel screws will not rust, but in fact, in harsh environments, stainless steel screws will also be corroded and then rust, so rust is actually a relatively common situation, but we are in When using stainless steel screws, most of them are used indoors or on some electrical equipment. The working environment is better, there is no pollution from sea water and strong acid atmosphere, and the probability of rusting is relatively low, so you can see the phenomenon of rusting. will be less.
We can only say that the anti-corrosion performance of stainless steel screws is particularly good. It has strong corrosion resistance to ordinary atmospheric environments, but it will still rust if used in coastal areas for a long time. It is this difference in use environment that requires a necessary understanding of some basic properties of stainless steel screws in order to use stainless steel screws reasonably and effectively. Under different temperature and temperature conditions, we can choose different stainless steel screws, such as 304 stainless steel screws or 316 stainless steel screws.
The anti-corrosion of stainless steel screw materials is mainly based on the use of some element content in the material itself to resist atmospheric corrosion. The structural changes of improved materials can also resist corrosion in theory, but stainless steel screws are standard parts. In the case of mass production, Retrofitting metal materials won't work.
Because when we use and install stainless steel screws, we must pay attention to some places. For stainless steel screws that are installed on site, they must be stored in a clean and ventilated place. When installing, we must also pay attention to whether there are stains on the teeth of the stainless steel screws This stain can become a source of corrosion when left outdoors for extended periods of time. Pay attention to temperature changes during installation. If the temperature difference is too large, water vapor will be generated. At this time, you should not rush to install. You should put the screws to dry before installing, so as not to seal the water vapor on the threads.
In fact, the antirust of stainless steel screws mainly depends on the protective film layer on the surface of the material. This protective wax is similar to an electroplating layer of carbon steel bolts. It is this layer of protective film that isolates the metal structure layer from the air, so that the stainless steel The screw does not rust, as long as the protective film is damaged, it is time for the stainless steel screw to start to rust. So stainless steel screws are not rust-free, but not easy to rust.
