What is the difference between nickel base alloy and ordinary stainless steel?


In fact, in essence, nickel base alloy is also a kind of stainless steel. It is just a special stainless steel. Its chemical composition is also different from that of ordinary stainless steel. Nickel base alloy is a high alloy stainless steel containing high nickel, high chromium and high molybdenum.

Among them, the famous is the steel containing 6% Mo (254SMO). This steel has good local corrosion resistance. Under the conditions of seawater, aeration, clearance and low-speed scouring (PI ≥ 40), it has good pitting corrosion resistance and better stress corrosion resistance. It is an alternative material for nickel base alloy and titanium alloy. Secondly, it has excellent high temperature or corrosion resistance or corrosion resistance. In addition, according to the classification of stainless steel, the metallographic structure of special stainless steel is a stable austenitic metallurgical structure.

For example, most stainless steel products are made by casting and calendering process, which is more complex than that of traditional alloy.