English
Duplex stainless steels (DSS) are a family of high-strength, corrosion-resistant alloys characterized by a dual-phase microstructure—approximately 50% ferrite and 50% austenite (minimum 30% of either phase). This unique structure combines the best properties of both ferritic and austenitic stainless steels, making DSS an ideal choice for demanding industrial applications.
Standard Duplex (e.g., 2205 / UNS S32205)
Chemical processing, oil & gas pipelines, desalination plants
Pressure vessels, heat exchangers, storage tanks
Offshore platforms, seawater systems, flue gas scrubbers
Highly corrosive environments (H₂S, acids, chlorides)
Structural applications, bridges, construction
Cost-effective alternative to 304/316 where high strength is needed
