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Physical Properties of Molybdenum

Molybdenum is one of the most widely used refractory metals in electric light sources. The refining process of molybdenum is easier than that of tungsten, so its price is lower than that of tungsten.

Molybdenum has better ductility than tungsten and can be processed into very thin molybdenum foil and very fine molybdenum wire. Molybdenum still has good mechanical properties at high temperatures (~1000℃) and does not deform.

Molybdenum has good electrical conductivity, which is 20 times that of mercury at room temperature, so it can be used as a lead.

Molybdenum is not as brittle as tungsten, and will not crack when it is cut with pliers. It can even be bent and forged at room temperature.

Molybdenum has a small expansion coefficient and can be sealed airtightly with molybdenum glass. Molybdenum has a low vapor pressure and evaporation rate, but it is relatively high compared to tungsten.

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