The chemical composition of 253MA is balanced, which makes the steel have the most suitable comprehensive properties in the temperature range of 850 ℃ - 1100 ℃, high oxidation resistance, scale temperature up to 1150 ℃, high creep deformation resistance and creep fracture strength, good high temperature corrosion resistance and brush corrosion resistance in most gas media, and high yield strength at high temperature And tensile strength; good formability and weldability, as well as adequate machinability.
In addition to chromium and nickel, 253MA stainless steel also contains a small amount of rare earth metals (REM), which significantly improves its oxidation resistance. Nitrogen was added to improve the creep properties and make the steel completely austenite. Although the chromium and nickel contents are relatively low, this stainless steel has in many cases the sa