Stainless steel parts manufacturers tell you that with the development of economy, the use of stainless steel has become more and more extensive. People’s daily life is closely related to stainless steel, but many people do not know enough about the performance of stainless steel and the maintenance of stainless steel. Most people think stainless steel will never rust. In fact, the reason why stainless steel has good corrosion resistance is that a passivation film is formed on its surface, and it exists in a more stable oxide form in nature. That is to say, although stainless steel is oxidized to different degrees according to different service conditions, it is eventually oxidized, which is usually called corrosion.
The manufacturer of stainless steel parts tells you that stainless steel refers to the steel that is resistant to weak corrosive media such as air, steam, water and chemical corrosive media such as acid, alkali and salt, also known as stainless acid resistant steel. Here are some stainless steel identification techniques for your reference.
1. Liquid medicine detection method: at present, there are several chemical liquid medicines used to detect stainless steel on the market. When one drops onto the surface of stainless steel, 201 turns dark brown and 304 turns red.
2. Price estimation method: fully understand the market situation of each steel grade. If the price of the same steel grade varies greatly, we should consider whether it is “Li Gui”.
3. Integrity of traders: enterprises with better integrity will do business in the market. It’s better to select more traders for comparison, which is also the way to prevent “Li Gui”.
4. Contract agreement law: stainless steel parts manufacturers tell you that in the transaction of stainless steel, those with large amount shall sign a good contract, indicating steel type, quantity, material, time, delivery date, responsibility for violating laws and disciplines, etc. In case of material discrepancy, the loss can be recovered through negotiation or law.