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Tungsten is characterized by its advantageous properties of high melting andboiling points, sufficient electrical and thermal conductivity and high hardnessand density ''(Table 2.35)''. It is mainly used in the form of brazed contact tips forswitching duties that require a rapid switching sequence such as horn contactsfor cars and trucks.

Molybdenum has a much lesser importance as a contact material since it is lessresistant against oxidation than tungsten.Both metals are however used in large amounts as components in compositematerials with silver and copper.

'''Table 2.35: Mechanical Properties of Tungsten and Molybdenum'''