AgMo60 soft annealed (+A)

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Description

Silver-molybdenum contact materials are relatively rare in Europe, more commonly used in the United States. With 20 to 80% Mo they have the highest erosion resistance at medium to high switching capacities. Silver-molybdenum composites with Mo contents of 40 to 80% generally have lower contact resistance than silver-tungsten composites of comparable composition. This is mainly due to the volatility of Mo oxide, which even at relatively low temperatures under the influence of the arc causes a self-cleaning of the contact surfaces. Silver-molybdenum contact materials, such as silver-tungsten, are used in low-voltage circuit breakers.

Related Standards

Los datos sobre este material han sido proporcionados por WIAM.

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

20.0 °C

10.3 g/cm³

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Mecánica

PropertyTemperatureValueComment

Coeficiente de Poisson

23.0 °C

0.37 [-]

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Typical for Silver

Dureza Vickers

20.0 °C

140 [-]

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Módulo de cizallamiento

23.0 °C

30 GPa

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Typical for Silver

Módulo elástico

23.0 °C

83 GPa

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Typical for Silver

Aplicaciones térmicas

PropertyTemperatureValueComment

Calor específico

23.0 °C

234 - 251 J/(kg·K)

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Typical for Silver

Coeficiente de dilatación térmica

23.0 °C

1.9E-5 1/K

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Typical for Silver

Conductividad térmica

23.0 °C

417 - 428 W/(m·K)

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Typical for Silver

Temperatura de fusión

962 °C

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Typical for Silver

Eléctrico

PropertyTemperatureValue

Conductividad eléctrica

20.0 °C

2.80E+7 S/m

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Resistividad eléctrica

20.0 °C

3.5E-8 Ω·m

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Chemical properties

PropertyValue

Molibdeno

60 %

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Plata

40 %

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