Stainless steel flange what is stainless steel flange what function it has

    Stainless steel flange is not difficult to understand, stainless steel flange is one of the flange, what is its use? Now we will take you to know what stainless steel flange is. Stainless steel flange is a kind of disk part. In the pipeline engineering, flange is mainly used for the connection of pipes. In the pipeline to be connected, one flange plate is installed respectively. For low-pressure pipes, screw flange can be used. Welding flange is used for pressure of more than 4 kg. Sealing points are added between two flange plates, and then tightened with bolts.

Stainless steel flange has good metal properties and strong corrosion resistance. It is often used in steel structure parts, such as stainless steel flange, etc. stainless steel flange is also called stainless steel flange, which has smooth metal surface and is not easy to oxidize with air. Therefore, it is often used in high-pressure water pipe and pressure pipe for corrosion. Here, we share the stainless steel method Excellent performance of blue.

    Firstly, as a metal material, it will react with air in humid environment, thus changing the original metal performance. However, stainless steel flange can passivate with oxidant, and form a layer of tough and dense chromium rich oxide protective film Cr2O3 on the surface. Stainless steel flange can effectively prevent the further oxidation reaction. However, the passivation ability of other metal pipes, such as galvanized pipe and copper pipe, is very small, which is the key reason why the corrosion resistance of the copper pipe is far less than that of stainless steel pipe.

    Then, the stainless steel flange is wear-resistant and corrosion resistant. Stainless steel flange will not be uniformly corroded like carbon steel, and no protective coating is required when using; stainless steel flange adopts stainless steel flange water pipe, which has no limit on the chemical composition of water, because stainless steel has good corrosion resistance in various oxygen content, temperature, pH and hardness water; stainless steel pipe can withstand very high corrosion resistance The flow rate of, even if the flow rate is more than 40 m / s, remains extremely low corrosion rate, not more than 0.003 mm / year, especially suitable for high-rise building water supply. The coefficient of thermal expansion of stainless steel flange pipe is about 1.5 times of that of common steel pipe, and the stainless steel flange pipe has the characteristics of slow expansion and cold shrinkage compared with stainless steel flange. In addition, the chemical reaction of stainless steel flange is generally integrated, and a protective film will be formed on its surface, which is not available for other metal materials.