Physical Properties of Molybdenum

Molybdenum is a transition metal element with many important physical properties. It has a density of up to 10.3 g/cm³ and a melting point of up to 2620±10°C, which gives it excellent stability and corrosion resistance at high temperatures. This silvery-white metal has a body-centered cubic crystal structure, which gives molybdenum its robust properties.

Molybdenum has a coefficient of expansion (linear expansion) of approximately %. Its low coefficient of expansion indicates that molybdenum has a high degree of dimensional stability despite temperature changes. Molybdenum is an excellent thermally conductive material with a thermal conductivity of approximately 138 W/(m-K). This enables molybdenum to conduct heat efficiently in high temperature environments and is therefore widely used in a number of high temperature applications. In addition, molybdenum is a good electrical conductor with a conductivity of approximately 1.87 × 106 S/m. This makes molybdenum useful in electronics and semiconductors. Molybdenum is highly resistant to air, water and many acids. Its ability to form dense oxide films effectively prevents further corrosion reactions from occurring. This makes molybdenum widely used in the preparation of corrosion-resistant materials.