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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.

Related Standards

Equivalent Materials

This material data has been provided by Matmatch.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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23.0 °C

21.2 g/cm³

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Elastic modulus

23.0 °C

483 GPa

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23.0 °C

2 %

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in 1 in.

Tensile strength

20.0 °C

1380 MPa

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500.0 °C

930 MPa

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1000.0 °C

480 MPa

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Coefficient of thermal expansion

23.0 °C

6.8E-6 1/K

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Melting point

3180 °C

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Specific heat capacity

23.0 °C

138 J/(kg·K)

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Thermal conductivity

23.0 °C

48 W/(m·K)

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Electrical resistivity

23.0 °C

1.35E-7 Ω·m

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Chemical properties



99.97 %

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Technological properties

Application areas

Common applications of Rhenium: Mass spectrometer filaments, grid heaters, cathode cups, nuclear reactors, thermocouples