The role of nickel in stainless steel is played after it is combined with chromium

Nickel is an excellent corrosion resistant material and an important alloying element of alloy steel. Nickel is an element that forms austenite in steel, but the nickel content of low carbon nickel steel should reach 24% to obtain pure austenite structure. Only when the nickel content is 27%, the corrosion resistance of steel in some media changes significantly. Therefore, nickel cannot constitute stainless steel alone. However, when nickel and chromium exist in stainless steel at the same time, nickel-containing stainless steel has many valuable properties.

Based on the above situation, it can be seen that the role of nickel as an alloying element in stainless steel is that it makes the structure of high chromium steel change, so that the corrosion resistance and process performance of stainless steel can be improved.