Duplex Stainless Steel

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Duplex Stainless Steels are called Duplex because the steel has a two-phase microstructure, consisting of both Ferritic and Austenitic phase. We are frequently working with this type of Stainless Steel. When we melt Duplex Stainless Steel, it will solidify from the liquid phase into a Ferritic phase complete similar as an Austenitic Stainless Steel. After this initial phase the Austenitic phase grows into the Ferritic phase. The correct quenching (cooling) of the steel can create a microstructure which is roughly 50% Austenite and 50% Ferrite. Duplex Stainless Steels can offer a comparable corrosion resistance as common austenitic grades, but with excellent mechanical properties. This is one of the main advantages of the material, which makes it a material which is growing it’s presence in industry, including the chemical industry.

Duplex Stainless Steel in practice

Duplex Stainless Steel is growing its presence in different industries. That is mainly because the material has various advantages, such as the strength and ductility of it. It is also corrosion resistance and lower in costs, due to the lower Nickel Alloying content.

Nowadays we see that Duplex Stainless Steel is used a lot for chemical processing, transport, and storage. It is often used to make pipes, mainly because of the production and transportation of chemical products, such as oil and gas. The material has a high potential in seawater application with the choice of a variety of grades.

Also, some of the biggest buildings in the world contain Duplex Stainless Steel. Think of the Stockholm’s waterfront building, the Louvre in Abu Dhabi and the La Sagrada Familia in Barcelona. Duplex also has a growing potential in bridges, locks and so on.

Why we use Stainless Steel Duplex in our expertises

Raymond Cordewener had the chance to investigate and test Duplex materials. He experienced and learned a lot of this. This included welding, heat treatments including certain risks and learned how to overcome these. So, we know that Duplex Stainless Steel is a Stainless Steel type with a lot of beneficial factors. It has a high corrosion resistance and is one of the strongest materials we use for chemical transport and production. That is exactly the reason why it is one of the interesting materials we talk about in our business. Duplex Stainless Steels even has its own Duplex Conference in which we participate!

We would like to share our knowledge about this distinctive Stainless Steel type to you. We regularly give workshops and masterclasses to introduce companies to this type of Stainless Steel and train them to understand the material. Our main reason is to share knowledge, so we can secure sustainable results for our customers.

Interested? Feel free to join our masterclasses trainings, or workshops or ask for your inhouse training, to learn more about Duplex Stainless Steel.