Duplex

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    Duplex Stainless Steels

    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.

    Discover the latest innovations in duplex technology with our exclusive Duplex World Update. Download this comprehensive 3-part series now and gain valuable insights from industry experts on groundbreaking applications and developments in duplex material science.

    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.

    If you wish to include your news release on our website and email newsletter, please feel free to contact the editor.

    Outokumpu restructures German operations

    Outokumpu restructures German operations

    Stainless Steel World Publisher -
    Outokumpu restructures German operations
    A new bar finishing line for Acciaierie Valbruna

    A new bar finishing line for Acciaierie Valbruna

    Stainless Steel World Publisher -
    The new bar finishing line is designed to maximize the efficiency and resource optimization, so as to enable a high level of operational process automation.
    Apex delivers Glycerin Reboilers to chemical producer

    Apex delivers Glycerin Reboilers to chemical producer

    Stainless Steel World Publisher -
    Apex Engineered Products delivered the third in a series of Glycerin Reboilers to an international chemical producer. Artfully assembled with Duplex 2205 Tubes, SS316 Tubesheets,...
    Exploring jacketed vessels via Diverse Welding Services

    Exploring jacketed vessels via Diverse Welding Services

    Stainless Steel World Publisher -
    Jacketed vessels are an indispensable constituent across a multitude of industries, including pharmaceutical, chemical, and food processing, to name a few.
    WELTEC BIOPOWER supports biomethane project

    WELTEC BIOPOWER supports biomethane project

    Stainless Steel World Publisher -
    According to the Spanish trade association Sedigas, up to 163 terawatt hours of biomethane could be produced if all available sources were used consistently
    Fairfield Chemical’s chemical tankers launched in Japan

    Fairfield Chemical’s chemical tankers launched in Japan

    Stainless Steel World Publisher -
    Japan’s Fukuoka Shipbuilding has launched Fairfield Chemical’s second in the series of four LNG dual-fuel stainless steel chemical tankers.
    Sinopec and Jiangsu launch a demonstration in China

    Sinopec and Jiangsu launch a demonstration in China

    Stainless Steel World Publisher -
    Sinopec Jiangsu Oil Construction Engineering Co., Ltd. has recently launched a large-scale automatic welding equipment demonstration in Shaobo, YangZhou, Jiangsu Province, China. Sinopec Petroleum Engineering...
    E&S Tankers delivers 1st of four LNG-fueled tankers

    E&S Tankers delivers 1st of four LNG-fueled tankers

    Stainless Steel World Publisher -
    E&S Tankers has taken delivery of the first of four of its 6,600 dwt duplex, stainless steel LNG dual-fuel chemical tankers Liselotte Esseberger. The FS...
    BUTTING focuses on geothermal energy

    BUTTING focuses on geothermal energy

    Stainless Steel World Publisher -
    BUTTING was recently commissioned by a renowned customer to manufacture casings for a new geothermal project: 2,656 m of 273.1 × 10.16 mm casings...
    Duplex World returns to Rotterdam in 2024

    Duplex World returns to Rotterdam in 2024

    Stainless Steel World Publisher -
    The next Duplex World conference and expo will take place 6 & 7 November 2024 in the Rotterdam Ahoy event space in Rotterdam, the...
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    The advantages of Duplex Stainless Steels

    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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