Copper Nickel 70/30 / NES 780 Copper Alloy

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Description

2.0882 (CuNi30Mn1Fe) is a 70% copper, 30% nickel alloy with additions of iron and manganese. These elemental additions make it somewhat more resistant to corrosion and erosion and with slightly improved strength level than 90/10, making it suitable for more demanding applications. In particular, its corrosion resistance is notably improved in high-velocity waters (up to 4.5m/s) and polluted seawater. It shows the following features and properties:


  • Excellent corrosion and pitting resistance in marine environments
  • Good strength and toughness
  • Resistance to biofouling
  • Readily weldable and fabricated
  • 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

    8.95 g/cm³

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    Mecánica

    PropertyTemperatureValue

    Dureza Brinell

    23.0 °C

    80 - 120 [-]

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    Elongación

    23.0 °C

    27 - 30 %

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    Límite elástico Rp 0,2

    23.0 °C

    125 MPa

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    Módulo de cizallamiento

    23.0 °C

    56 GPa

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    Módulo elástico

    23.0 °C

    152 GPa

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    Resistencia a la tracción

    23.0 °C

    310 - 330 MPa

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    Aplicaciones térmicas

    PropertyTemperatureValue

    Calor específico

    23.0 °C

    377 J/(kg·K)

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    Coeficiente de dilatación térmica

    23.0 °C

    1.6E-5 1/K

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    Conductividad térmica

    23.0 °C

    29 W/(m·K)

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    Eléctrico

    PropertyTemperatureValue

    Conductividad eléctrica

    23.0 °C

    2.90E+6 S/m

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    Resistividad eléctrica

    23.0 °C

    3.4E-7 Ω·m

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    Specific Electrical conductivity

    5 % IACS

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    Chemical properties

    PropertyValue

    Cobre

    Balance

    Hierro

    0.7 %

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    Manganeso

    1 %

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    Níquel

    30 %

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    Technological properties

    Property
    Application areas

    Offshore & marine: Salt water flanges, salt water piping and pipe fittings, valve bodies, sea water intakes, pipe fittings, water boxes, propeller sleeves, pump bodies and parts;Chemical processing: Heat exchanger and cooling plant, evaporator tubes, distiller tubes, refrigerator and condenser components;Other: Welding backing rings, flexible metal hose, weld wire and boiler parts

    Cold Forming

    Good cold formability

    Corrosion properties

    Excellent corrosion and pitting resistance in marine environments

    General machinability

    Easily machined, Machinability rating: 20

    Hot forming

    Good hot formability with hot working temperature between 925-1025°C.