S32550 / AMAZON 256 Duplex Stainless Steel

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Description

1.4507 (X2CrNiMoCuN25-6-3) is a super duplex stainless steel widely used in critical offshore, petrochemical and chemical plant applications. It is based on a 26% chromium and 6% nickel composition. The grade has very good pitting and crevice corrosion resistance resulting from a controlled addition of copper, as well as excellent ductility and impact strength at both ambient and sub-zero temperatures, combined with a high resistance to abrasion, erosion and cavitation erosion. These features make it particularly suitable for use in seawater and other chloride-containing environments. It shows the following features and properties:


  • Very good mechanical properties
  • Excellent resistance to fatigue and corrosion fatigue
  • Excellent general corrosion resistance
  • High resistance to erosion and abrasion in flowing systems
  • Good machinability and weldability
  • Related Standards

    Equivalent Materials

    Los datos sobre este material han sido proporcionados por Matmatch.

    A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
    Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

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    Propiedades

    General

    PropertyTemperatureValue

    Densidad

    23.0 °C

    7.8 g/cm³

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    Mecánica

    PropertyTemperatureValueComment

    Coeficiente de Poisson

    23.0 °C

    0.32 [-]

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    Dureza Brinell

    23.0 °C

    270 [-]

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    max.

    Elongación

    23.0 °C

    25 %

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    Límite elástico Rp 0,2

    23.0 °C

    550 MPa

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    Módulo de cizallamiento

    23.0 °C

    75 GPa

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    Módulo elástico

    23.0 °C

    199 GPa

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    Resistencia a la tracción

    23.0 °C

    760 MPa

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    Aplicaciones térmicas

    PropertyTemperatureValueComment

    Calor específico

    23.0 °C

    425 J/(kg·K)

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    Coeficiente de dilatación térmica

    23.0 °C

    1.11E-5 1/K

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    for 20-100°C

    Conductividad térmica

    23.0 °C

    14 W/(m·K)

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    for 20-300°C

    Eléctrico

    PropertyTemperatureValue

    Resistividad eléctrica

    23.0 °C

    8E-7 Ω·m

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    Magnético

    PropertyTemperatureValue

    Permeabilidad magnética relativa

    23.0 °C

    33 [-]

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    Chemical properties

    PropertyValueComment

    Azufre

    0.03 %

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    max.

    Carbono

    0.04 %

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    max.

    Cobre

    1.5 - 2.5 %

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    Cromo

    24 - 27 %

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    Fósforo

    0.04 %

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    max.

    Hierro

    Balance

    Manganeso

    1.5 %

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    max.

    Molibdeno

    2.9 - 3.9 %

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    Nitrógeno

    0.1 - 0.25 %

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    Níquel

    4.5 - 6.5 %

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    Silicona

    1 %

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    max.

    Technological properties

    Property
    Application areas

    Offshore & marine: Offshore platforms, components for gas, oil and process cooling plants, instrumentation, wellhead and subsea wellhead fittings, desalination plants, seawater cooled heat exchangers, cargo heating systems, marine shafts (for boats etc) and high strength fasteners;Chemical processing: Equipment handling organic or dilute sulphuric acid, process solutions contaminated with chlorides, refinery equipment, desulphurising and distillation units, sewage plant components, fire extinguishing systems, general processing, mixing plant and high strength fasteners;Other: Nuclear waste casks, medical instruments, paper mill equipment and chemical process plants, mechanical components including springs, screws, bolts, gears, bushes and wear rings

    Corrosion properties

    Excellent general corrosion resistance

    General machinability

    Good machinability