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  • Stainless Steel 2507

    Duplex 2507, is a commonly used super duplex stainless steel.

    Also sold as Alloy 2507, this alloy is used in situations where exceptional strength and corrosion resistance are in demand.

    Stainless Steel 2507

    The reason Duplex 2507 is utilized is due to its unique properties.


    On top of its basic corrosion resistance and strength, Duplex 2507 also provides:

    Extreme resistance to uniform corrosion
    Good resistance to inorganic acids/chlorides
    Works with dilute hydrochloric acid
    Improved machinability and weldability
    High impact strength

    Performance Table


    To be considered Duplex 2507, an alloy it must contain a number of different chemical components including:

    Grade C Si Mn P≤ S≤ Cr Mo Ni Other
    2507 ≤0.030 ≤1.00 ≤2.00 0.035 0.015 24-26 3.0-4.5 6.0-8.0


    Mechanical Properties

    Grade YS(Mpa) ≥ TS (Mpa) ≥ El (%) ≥ Hardness(HV) ≤
    2507 530 730 20 310


    Some of the applications and industries that utilize Duplex 2507 include:

    Chemical process industries
    Heat exchangers, vessels, and piping
    Desalination plants and other saltwater applications
    Power industry FGD systems
    Offshore platforms including fire-fighting systems