Discuss the rust problem of stainless steel sheet

The client asked me: 'Will your stainless steel sheet rust?' If I buy back the stainless steel sheet at a high price and find it rusted in less than half a year, it is very embarrassing. 'For this issue, the stainless steel plate manufacturer Topson wants to say here: many people think that 'stainless steel does not rust, it is not stainless steel that rusts, it may be a problem with steel'. In fact, this is a one-sided lack of understanding of stainless steel plates. wrong view.

First, let's analyze the reasons for the rusting of stainless steel sheets. Stainless steel has both the ability to resist atmospheric oxidation—that is, rust resistance, and the ability to resist corrosion in media containing acids, alkalis, and salts—that is, corrosion resistance. But its corrosion resistance is different due to its chemical composition, mutual state, use conditions and types of environmental media. For example, 304 stainless steel plate has excellent corrosion resistance in a dry and clean atmosphere, but it will be moved to the seaside area, which contains a lot of salt in the sea fog and will rust quickly; 316 stainless steel plate has good performance. Therefore, it is not any kind of stainless steel that is resistant to corrosion and does not rust in any environment.

The stainless steel plate forms a very thin and strong fine and stable passivation film on its surface to prevent the continuous penetration of oxygen atoms, continue to oxidize, and obtain the ability to resist corrosion. Once there is some reason, this layer of film is constantly destroyed, the oxygen atoms in the air or liquid will continue to penetrate or the iron atoms in the metal will continue to be removed, forming loose iron oxide, and the metal surface will continue to corroded, resulting in rust

Then if the stainless steel is rusted, what we should do is: if the area is not large and the rust is not serious, you can try it with five kinds of cleaning powder, which is convenient to use. Slight rust, if you are afraid of friction, you can use a soft cloth to brush with toothpaste, and it can also play a polishing role.

Here, I remind the majority of interested customers that when purchasing stainless steel sheets, you must choose regular, qualified, and stainless steel sheet manufacturers. In addition to being careful when buying it, how to maintain and maintain it after buying it is also critical to prevent stainless steel from rusting.