Uses of stainless steel:

Generally speaking, stainless steel is not easy to rust steel, in fact, a part of stainless steel, both rust, and acid resistance (corrosion resistance). The rust resistance and corrosion resistance of stainless steel are due to the formation of chromium-rich oxide film (passivation film) on its surface. This rust resistance and corrosion resistance are relative. The experimental results show that the corrosion resistance of steel in weak media such as air, water and oxidizing media such as nitric acid increases with the increase of chromium content in steel. When the chromium content reaches a certain percentage, the corrosion resistance of steel changes from easy to rust, from corrosion resistance to corrosion resistance. There are many ways to classify stainless steel. According to the classification of microstructure at room temperature, there are Martensite, austenite, ferrite and duplex stainless steel; According to the main chemical composition classification, can be basically divided into chromium stainless steel and chromium nickel stainless steel two systems; According to the use, there are resistance to nitric acid stainless steel, resistance to sulfuric acid stainless steel, seawater stainless steel and so on, according to the corrosion resistance type can be divided into pitting resistance stainless steel, stress corrosion resistance stainless steel, intergranular corrosion resistance stainless steel; According to the functional characteristics of the classification can be divided into non-magnetic stainless steel, free cutting stainless steel, low temperature stainless steel, high strength stainless steel and so on. Because stainless steel has excellent corrosion resistance, formability, compatibility and toughness in a wide temperature range, it is widely used in heavy industry, light industry, household goods industry and building decoration industry.

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