- Trade nameUNS gradeEN grade
With it’s two-phased microstructure of equal amounts of austenite and ferrite, Duplex stainless steel is the preferred choice for applications such as storage tanks, pressure vessels, heat exchangers, bridges, railings, aquaculture, desalination systems, and various other uses.
Its renowned strength, corrosion resistance, and low maintenance makes Duplex a cost-effective and reliable alternative to standard austenitic stainless steels, such as 304 and 316L. Especially in offshore or coastal locations.
Utilizing the strength of Duplex compared to carbon steel and ordinary stainless steel means less cost due to weight savings by reducing the thickness. It also requires less handling, fabrication, and welding.
Construction, petrochemical industry, paper production or offshore oil platform – regardless of what you will build, enforce or repair, we at Sverdrup Steel can provide you with Duplex material of the highest quality – in the shape and quantity you like.
Advantages of Duplex stainless steel
High strength
Good resistance to corrosion and stress corrosion cracking
More predictable price level
Good fatigue strength
More than 30 % weight savings on most applications
Low life cycle cost due to no need for regular painting
100 % recyclable and made from more than 85 % recycled material
Choose stainless steel by Duplex grade
Sverdrup Steel is a leading supplier of Duplex, Super Duplex and Lean Duplex stainless steel. We provide one of the world’s most extensive stocks of Duplex coils, plates, bars, and profiles ready for delivery to your next project. In addition, our technical department and metallurgists are prepared to help you with advice and guidance. Scroll down to see our collection of duplex alloys.
Order Duplex products by shape
Although Duplex steel is known to be easily weldable and processed, it’s always nice to avoid unnecessary work. By choosing Sverdrup, you can order Duplex steel products based on shape and size. Explore our duplex coils and bars in different widths and lengths, or order a custom-sized duplex plate or steel profile ready for delivery.
By visiting the dedicated product pages, you will find detailed information on the mechanical properties and corrosion resistant abilities for each of our different alloys. You can also use our various digital tools for calculating material weight and more.