Tungsten has a very low coefficient of thermal expansion, which means it does not expand or contract much with changes in temperature. The coefficient of thermal expansion for tungsten is 4.5 x 10^-6 m/mK, which is one of the lowest among metals. This property makes tungsten a suitable material for applications where dimensional stability is critical over a wide temperature range. However, it’s worth noting that the coefficient of thermal expansion can vary depending on the specific tungsten alloy used and the temperature range of interest.
