Now a lot of people to the application of the whole process of pipeline, are fond of the application of stainless steel industrial pipe, this is more because of the corrosion resistance of stainless steel industrial pipe, so you understand the corrosion resistance of stainless steel industrial pipe is what?
All metal materials react with CO2 in the air, producing oxide film on the surface. Tragically, the iron oxide produced on ordinary carbon steel is oxidized again, causing rust to develop and eventually produce holes. Electroplating processes can be carried out using lacquers or metal materials resistant to oxidation (e.g., zinc, nickel and chromium) to secure the surface of carbon steel, but, as is well known, this type of maintenance is only a plastic film. If the thickness of the protective layer is destroyed, the steel below will just start to rust.
The corrosion resistance of stainless steel industrial pipe lies in chromium, but as chromium is one of the components of steel, so the maintenance methods are different.
The air corrosion resistance of steel can be significantly improved when the chromium content is up to 10.5%, but the corrosion resistance can be improved when the chromium content is higher, but not significantly. The reason is that when chromium is used for fine grain hardening of steel, the type of surface oxide is changed to a surface oxide similar to that produced on pure chromium metal materials. These closely bonded chrome-rich oxides maintain the surface and prevent further oxidation. This kind of oxide layer is extremely thin, through which can see the surface of the steel of course gloss, so that the stainless steel industrial tube has a distinctive surface. And, if the surface is damaged, the exposed steel surface and the air will react to carry out its own repair, producing this type again
