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Rhenium

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Rhenium

Tungsten

Pyrolytic Graphite

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Rhenium

Tungsten

Pyrolytic Graphite

Equivalent standards

Chemical composition

Element

Weight %

Comment

Re

99.97 %

min

Element

Weight %

Comment

W

99.95 %

min

Element

Weight %

Comment

Material Information

Application areas,

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

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Common applications of Tungsten: Lamp filaments, high temperature furnaces, welding electrodes

Sputtering Targets, Ion Beam Grids, Ion Implant Hardware, Liquid Phase Epitaxy Hardware, Crucibles f

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Other,

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-

The key features are: Chemically inert, high purity, stable to 3000°C, impermeable, directional elec

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Mechanical

Elastic modulus, E

483 GPa at 20 °C

400 GPa at 20 °C

20 GPa at 20 °C

Hardness, Vickers, HV

-

460 [-] at 20 °C

-

Compressive strength, Rs

-

-

100 MPa at 20 °C

Tensile strength, Rm

1380 MPa at 20 °C

1725 MPa at 20 °C

80 MPa at 20 °C

Flexural strength, σbend

-

-

120 MPa at 20 °C

Elongation, A

2 % at 20 °C

-

-

General

Density, ρ

21.2 g/cm³ at 20 °C

19.3 g/cm³ at 20 °C

2.18 - 2.2 g/cm³ at 20 °C

Electrical

Electrical resistivity, transverse, ρel,trans

-

-

5E-3 Ω·m at 20 °C

Electrical resistivity, ρel

1.35E-7 Ω·m at 20 °C

5.28E-8 Ω·m at 20 °C

5E-6 Ω·m at 20 °C

Thermal

Coefficient of thermal expansion, α

6.8E-6 1/K at 20 °C

4.2E-6 1/K at 20 °C

5E-7 1/K at 20 °C

Specific heat capacity, cp

138 J/(kg·K) at 20 °C

134 J/(kg·K) at 20 °C

-

Thermal conductivity, transverse, λtrans

-

-

3.5 W/(m·K) at 20 °C

Max service temperature, Tmax

-

-

3000 °C

Thermal conductivity, λ

163 W/(m·K) at 20 °C

173 W/(m·K) at 20 °C

300 W/(m·K) at 20 °C

Coefficient of thermal expansion, transverse, αtrans

-

-

2E-5 1/K at 20 °C

Melting point, Tm

3180 °C

3420 °C

3650 °C