Dec 14, 2021
What is the difference between nickel-based alloys and ordinary stainless steel?
In essence, nickel-based alloy is also a kind of stainless steel, but it is a special stainless steel, and its chemical composition is also different from that of ordinary stainless steel.
Nickel-based alloy is a kind of high-alloy stainless steel containing high nickel, high chromium and high molybdenum.
Among them, the famous steel containing 6% Mo (254SMo) has the following advantages:
1. This steel has good local corrosion resistance. It has good pitting corrosion resistance and better stress corrosion resistance under the conditions of seawater, aeration, clearance and low-speed scouring (PI≥40). It is an alternative material for nickel-based alloys and titanium alloys.
2. It has excellent high temperature or high temperature corrosion resistance or corrosion resistance.
3. It is irreplaceable for 304 stainless steel.
4. From the perspective of the classification of stainless steel, the metallographic structure of special stainless steel is a stable austenitic metallurgical structure.
As nickel-based alloy is a high-alloy high-performance special material, its manufacturing process will be more complicated than ordinary stainless steel products. At present, most of them still rely on traditional processes for manufacturing, such as: infusion, forging, and rolling.
