What is the difference between nickel-based materials and stainless steel?
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What is the difference between nickel-based materials and stainless steel?

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By:Lebon

Jun 22,2026

What is the difference between nickel-based materials and stainless steel?

 

1. Different definitions Nickel-based alloy is a special kind of stainless steel, which is a kind of high-alloy stainless steel containing high nickel, high chromium and high molybdenum.

 

Stainless steel is the abbreviation of stainless acid-resistant steel, and the type of steel that is resistant to weak corrosive media such as air, steam, and water, or has rust properties, is called stainless steel.

 

2. High-performance nickel-based alloys have very good local corrosion resistance. Under the conditions of seawater, gas, gaps, and low-speed scouring, they have good pitting corrosion resistance and good stress corrosion resistance. They are Ni-based alloys and Alternative materials for titanium alloys.

 

At the same time, it has better high temperature or corrosion resistance. And stainless steel is almost in this regard.

 

3. Different classification The phase structure of nickel-based alloys is a stable austenitic metallographic structure. Stainless steel is often divided into: martensitic steel, ferritic steel, austenitic steel, austenitic-ferritic (duplex) stainless steel and precipitation hardening stainless steel according to the structure state.


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