Duplex stainless steels have a ferritic-austenitic microstructure, in roughly equal proportions 50% ferrite and 50% austenite. Duplex combines many of the attractive properties of ferritic and austenitic stainless steels into one.
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Different variants for Duplex
Duplex stainless steels are designed to provide better corrosion resistance, in particular to stress corrosion and pitting corrosion. The microstructure leads to higher strength than standard austenitic stainless steels such as Type 304 or 316. Duplex stainless steels have become more and more popular in recent years. There are several variants available, such as Duplex 2205, Superduplex 2507 or lean duplex with lower nickel content.
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Hunan Mana Materials announced a high-performance duplex stainless steel. Duplex Stainless Steel (DSS) is a multi-phase structure metal material composed of ferrite (α) and austenite (γ) in considerable volume fractions.
Amarinth has delivered two separate orders of API 610 pumps totalling £1.2M for the West Qurna-2 expansion project in Iraq.
West Qurna-2, located approximately 65km...
Hunan Mana Materials announced a high performance duplex stainless steel. Duplex Stainless Steel (DSS) is a multi-phase structure metal material composed of ferrite (α)...
Mannesmann Stainless Tubes and Gemaco have come to a partnership agreement in order to serve the fertilizer/urea industry better and faster. From August on...
Duplex World unites researchers, manufacturers, end-users and suppliers in an open and focused forum. It’s your chance to network with the leading minds driving...
The Australian Stainless Steel Development Association (ASSDA) award category Fabricator Project of the Year was accepted by Arcus Wire Groups’ International Sales Manager Josh...
Stroble Pumpen has successfully dispatched four CPP 40-25-250 process pumps manufactured in duplex stainless steel in accordance with API 685. The pumps are characterised...
Corrosion Resistance: Duplex stainless steel has excellent corrosion resistance due to its high chromium and molybdenum content. It is particularly resistant to stress corrosion cracking and pitting, which makes it suitable for use in harsh environments.
Strength: Duplex stainless steel is much stronger than conventional austenitic stainless steels, which allows for thinner and lighter constructions without sacrificing durability.
Toughness: Duplex stainless steel has a high toughness, which means it is resistant to brittle fracture and impact. This property makes it suitable for use in cryogenic applications.
Cost-effectiveness: Although duplex stainless steel is more expensive than conventional austenitic stainless steels, its superior properties can lead to cost savings in the long run by reducing maintenance and downtime.
Versatility: Duplex stainless steel can be used in a wide range of applications, including chemical processing, oil and gas, marine, and pulp and paper industries. It is also used in construction and architecture due to its aesthetic appeal.
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