Among the highest density element and melting point, rhenium does not have a ductile to brittle transition temperature and does not form carbides. With high resistivity, combined with low vapor pressure, it is an ideal material for filament applications. Excellent resistance to corrosion, resists acid attack and the mechanical effects of electrical erosion. Rhenium has a beneficial effect as an alloying addition with other refractory metals as it greatly enhances the ductility and tensile strength of these alloys.
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21.2 g/cm³ at 20 °C
Coefficient of thermal expansionα
6.8E-6 1/K at 20 °C
Specific heat capacitycp
138 J/(kg·K) at 20 °C
48 W/(m·K) at 20 °C
1.35E-7 Ω·m at 20 °C
Common applications of Rhenium: Mass spectrometer filaments, grid heaters, cathode cups, nuclear reactors, thermocouples
This material data has been provided by Matmatch.