Ferritic stainless steel has the characteristics of high yield strength, high thermal conductivity, low coefficient of thermal expansion, good deep drawing forming performance, excellent resistance to stress corrosion cracking, ferromagnetism, and low cost.
1. Comparison of austenitic stainless steel
Firstly, the thermal expansion rate of ferritic stainless steel is lower; Secondly, ferritic stainless steel exhibits better oxidation resistance in high-temperature environments; Thirdly, the thermal conductivity of ferritic stainless steel is higher than that of austenitic stainless steel; Fourthly, ferritic stainless steel is less prone to stress corrosion cracking.
2. Compare martensitic stainless steel
What is the difference between ferrite and martensitic stainless steel, which are both 400 series and have magnetism? Firstly, the carbon content of ferritic stainless steel is generally within 0.15, while that of martensitic stainless steel is generally above 0.2. Secondly, due to the high carbon content of martensite, it can be hardened through heat treatment, but its corrosion resistance is average and is generally used in the production of products such as cutting tools. Ferritic stainless steel has low carbon content and good corrosion resistance. Generally used in the production of elevator casings, as well as household electrical products, and so on.