VDM® Alloy 40 B

Nombres alternativos y comerciales
Cronifer® 40 B, VDM® Alloy 40 B
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Description

1.4888 (X10NiCrSiLa 38-22) is a cost effective alloy for heating elements which shows the following features and superior properties:


  • Sagging behavior similar to Cronifer® II
  • Excellent corrosion resistance at high temperatures
  • Excellent life time
  • Ease of working and processing
  • Reduced nickel content compared to Cronifer II
  • Equivalent Materials

    Los datos sobre este material han sido proporcionados por VDM Metals.

    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.

    Ashby charts

    Propiedades

    General

    PropertyTemperatureValue

    Densidad

    23.0 °C

    7.95 g/cm³

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    Mecánica

    PropertyTemperatureValueComment

    Dureza Vickers

    23.0 °C

    140 - 200 [-]

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    Typical values for strip

    Elongación A50

    20.0 °C

    37 %

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    100.0 °C

    42 %

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    300.0 °C

    44 %

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    500.0 °C

    40 %

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    600.0 °C

    48 %

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    700.0 °C

    61 %

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    800.0 °C

    29 %

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    900.0 °C

    22 %

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    1000.0 °C

    23 %

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    Límite elástico Rp 0,2

    20.0 °C

    330 MPa

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    100.0 °C

    272 MPa

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    300.0 °C

    228 MPa

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    500.0 °C

    203 MPa

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    600.0 °C

    192 MPa

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    700.0 °C

    170 MPa

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    800.0 °C

    132 MPa

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    900.0 °C

    74 MPa

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    1000.0 °C

    34 MPa

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    Resistencia a la tracción

    20.0 °C

    689 MPa

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    100.0 °C

    611 MPa

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    300.0 °C

    595 MPa

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    500.0 °C

    582 MPa

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    600.0 °C

    510 MPa

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    700.0 °C

    319 MPa

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    800.0 °C

    156 MPa

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    900.0 °C

    88 MPa

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    1000.0 °C

    39 MPa

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    Aplicaciones térmicas

    PropertyTemperatureValue

    Calor específico

    20.0 °C

    490 J/(kg·K)

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    100.0 °C

    500 J/(kg·K)

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    200.0 °C

    510 J/(kg·K)

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    400.0 °C

    540 J/(kg·K)

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    600.0 °C

    595 J/(kg·K)

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    800.0 °C

    600 J/(kg·K)

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    1000.0 °C

    640 J/(kg·K)

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    Coeficiente de dilatación térmica

    200.0 °C

    1.64E-5 1/K

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    400.0 °C

    1.67E-5 1/K

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    600.0 °C

    1.7E-5 1/K

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    800.0 °C

    1.73E-5 1/K

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    1000.0 °C

    1.78E-5 1/K

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    Conductividad térmica

    20.0 °C

    12 W/(m·K)

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    100.0 °C

    13 W/(m·K)

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    200.0 °C

    14 W/(m·K)

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    400.0 °C

    18 W/(m·K)

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    600.0 °C

    21 W/(m·K)

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    800.0 °C

    23 W/(m·K)

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    1000.0 °C

    26 W/(m·K)

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    Temperatura de fusión

    1350 - 1395 °C

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    Eléctrico

    PropertyTemperatureValue

    Resistividad eléctrica

    20.0 °C

    1.06E-6 Ω·m

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    100.0 °C

    1.09E-6 Ω·m

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    200.0 °C

    1.12E-6 Ω·m

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    300.0 °C

    1.16E-6 Ω·m

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    400.0 °C

    1.18E-6 Ω·m

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    500.0 °C

    1.21E-6 Ω·m

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    600.0 °C

    1.22E-6 Ω·m

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    700.0 °C

    1.24E-6 Ω·m

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    800.0 °C

    1.25E-6 Ω·m

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    900.0 °C

    1.27E-6 Ω·m

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    1000.0 °C

    1.28E-6 Ω·m

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    Chemical properties

    PropertyValueComment

    Aluminio

    0.5 %

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    max.

    Azufre

    0.03 %

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    max.

    Carbono

    0.12 %

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    max.

    Cobre

    0.5 %

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    max.

    Cromo

    20 - 23 %

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    Fósforo

    0.03 %

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    max.

    Hierro

    Balance

    Lantano

    0.03 - 0.2 %

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    Manganeso

    1 %

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    max.

    Níquel

    36 - 39 %

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    Silicona

    1.3 - 2.2 %

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    Technological properties

    Property
    Application areas

    Electric furnaces, open heating elements for appliances, resistors, exhaust systems.

    Cold Forming

    For cold working the solution-annealed condition is recommended.

    Corrosion properties

    Cronifer® 40 B shows excellent oxidation resistance. This is the result of its high chromium and silicon content. The scale is very resistant to spalling because of the addition of about 0.1 % lanthanum.

    General machinability

    Cronifer® 40 B can be hot and cold worked and machined.

    Heat Treatment

    Solution annealing can be performed at temperatures typically above 1150°C., followed by quenching in water or fast cooling with air or a protective atmosphere. After cold forming a recrystallization heat treatment typically above 1150°C., is required.

    Other

    Cronifer® 40 B has a face-centered-cubic structure.