What is duplex stainless steel?
Duplex stainless steel is a type of stainless steel that contains a microstructure of both austenite and ferrite. Austenite and ferrite are two different crystal structures that form when stainless steel is cooled from high temperatures. What makes duplex steel unique is that it combines the benefits of both austenite and ferrite structures. Austenite provides good corrosion resistance and ductility, while ferrite offers higher strength and stress corrosion cracking resistance. This combination of properties makes duplex stainless steel well-suited for applications in environments where both corrosion resistance and strength are important, such as in chemical processing, oil and gas, and marine industries.
Duplex stainles steel advantages
Duplex stainless steel offers several advantages due to its unique microstructure and combination of properties. Some of the key advantages include:
- Corrosion and stress corrosion cracking resistance
- Strength
- Abrasion and erosion resistance
- Good weldability
- High thermal conductivity
The advantages of duplex stainless steel make it a preferred choice in situations where a balance between corrosion resistance, strength, and other mechanical properties is required for optimal performance and durability. Below you can find a selection of articles related to austenitic stainless steels.