Do you know the wear resistance of 304 stainless steel square tube knowledge?

[导读] : Generally speaking, 304 stainless steel square tube knowledge easy to ionize the metal easy to oxidize, that is, easy to corrode, but in fact not entirely, some metals such as...

Generally speaking, 304 stainless steel square tube knowledge easy to ionize the metal easy to oxidize, that is, easy to corrode, but in fact not entirely, some metals such as aluminum, magnesium, chromium, etc. Although easy to ionize, but because they are easy to generate a layer of corrosion products in the atmosphere or water of the thin film, thereby improving the corrosion resistance. Through chemical or electrochemical methods to make the surface state of aluminum and aluminum alloy metal changes, so that its dissolution rate decreases dramatically, so that the corrosion resistance is improved, this process is called aluminum passivation treatment. Passivation is often accompanied by a sudden increase in anodic potential, which makes it difficult to carry out anodic reaction, so that the metal corrosion rate slows down or stops. Passivation is actually through the chemical reaction of the passivation solution, the active metal surface layer into an inert surface layer, thus preventing the external destructive substances and metal surface reaction, so as to achieve the purpose of prolonging the rusting time. 304 Stainless Steel Square Tube Knowledge Because passivation can significantly improve the corrosion resistance of metal, it is widely used in machinery, electronics, instruments, daily necessities, military instruments and other fields. With the continuous development of productivity in recent years. Stainless steel materials in various industrial fields has been very rapid and widely used. According to relevant statistics show that China's demand for stainless steel material consumption rose from 260,000 T in 1990 to about 5.6 million T in 2006. Year-on-year growth of about 22 times. This trend and has been a continuous upward trend in the development. Stainless steel material application of the market can be imagined, large and small metal products enterprises can be said to be all over the world. However, the expensive price of stainless steel, also makes its application in a certain limit.

Especially in recent years, the rising price of raw materials has seriously affected the production cost of stainless steel products, has become a bottleneck restricting the development of production. Enterprises forced by the pressure of competition and the need to cut costs, so the current investment in the 400 series and 200 series of product development and production; 400 series and 200 series belong to the low chromium and low nickel category of stainless steel. 304 stainless steel square tube knowledge cost is relatively low only for 300 series stainless steel less than 1/2. Therefore, it is favored by the majority of users, and the market demand for this kind of material is also more and more. This analysis will become an inevitable trend in the application of stainless steel materials. However, although these materials have mechanical properties equivalent to 300 series stainless steel, but ultimately due to the chromium and nickel content is too low and weak corrosion resistance. So how to improve the corrosion resistance of these materials is the key to the effective application of the material.