Advantages And Disadvantages Of Ferritic Stainless Steel

stainless steel mainly composed of ferrite in the use state. The chromium content is between 11% and 30%, and it has a body-centered cubic crystal structure. This type of steel generally does not contain nickel, and sometimes contains a small amount of Mo, Ti, Nb and other elements. 

This type of steel has the characteristics of large thermal conductivity, small expansion coefficient, good oxidation resistance, and excellent stress corrosion resistance. , Parts corroded by water vapor, water and oxidizing acid. This kind of steel has disadvantages such as poor plasticity, significantly reduced post-weld plasticity and corrosion resistance, which limit its application. 

The application of out-of-furnace refining technology (AOD or VOD) can greatly reduce interstitial elements such as carbon and nitrogen, so this type of steel is widely used.