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Formula: Re
Form: Disk
Material: Rhenium
CAS Number: 7440-15-5
Commodity: Metals
Purity:
99.99%
Temper:
Annealed
Rhenium Disk provides exceptional high-temperature strength, corrosion resistance, and electrical conductivity in a precision-machined circular format suited for extreme-environment applications. Its disk geometry ensures uniform contact surfaces, making it ideal for use in electrical contacts, vacuum device electrodes, and precision optical mounts exposed to thermal cycling. Industries employ rhenium disks in aerospace propulsion systems, semiconductor fabrication tools, and high-vacuum instrumentation. Research applications include catalytic studies for hydrogenation reactions, high-temperature creep testing, and thin-film deposition processes requiring stable substrates. The disk’s combination of uniform geometry, refractory stability, and resistance to chemical degradation enables consistent performance in demanding engineering systems, supporting innovation across aerospace, electronics, and advanced manufacturing sectors.
Tolerances
Disc
| Thickness | >0.05mm | ±10% |
|---|---|---|
| Thickness | <0.01mm | ±25% |
| Thickness | 0.01mm - 0.05mm | ±15% |
Material Properties for Metals
Atomic Properties
| Element | Value |
|---|---|
| Atomic number | 75 |
| Crystal structure | Hexagonal close packed |
| Electronic structure | Xe 4f¹⁴ 5d⁵ 6s² |
| Valences shown | -1,1,2,3,4,5,6,7 |
| Atomic weight( amu ) | 186.207 |
| Thermal neutron absorption cross-section( Barns ) | 85 |
| Photo-electric work function( eV ) | 5 |
| Natural isotope distribution( Mass No./% ) | 187/ 62.6 |
| Natural isotope distribution( Mass No./% ) | 185/ 37.4 |
| Atomic radius - Goldschmidt( nm ) | 0.138 |
| Ionisation potential( No./eV ) | 1/ 7.87 |
| Ionisation potential( No./eV ) | 2/ 16.6 |
Mechanical Properties
| Element | Value |
|---|---|
| Material condition | Soft |
| Material condition | Hard |
| Poisson's ratio | 0.26 |
| Poisson's ratio | 0.26 |
| Bulk modulus( GPa ) | 334 |
| Bulk modulus( GPa ) | 334 |
| Tensile modulus( GPa ) | 466 |
| Tensile modulus( GPa ) | 466 |
| Hardness - Vickers( kgf mm⁻² ) | 280 |
| Hardness - Vickers( kgf mm⁻² ) | 700 |
| Tensile strength( MPa ) | 2225 |
| Tensile strength( MPa ) | 1125 |
| Yield strength( MPa ) | 315 |
| Yield strength( MPa ) | 2150 |
Electrical Properties
| Element | Value |
|---|---|
| Electrical resistivity( µOhmcm ) | 18.7@20@20°C |
| Superconductivity critical temperature( K ) | 1.7 |
| Temperature coefficient( K⁻¹ ) | 0.0045@0-100°C |
Physical Properties
| Element | Value |
|---|---|
| Boiling point( C ) | 5627 |
| Density( gcm⁻³ ) | 21@20 |
Thermal Properties
| Element | Value |
|---|---|
| Melting point( C ) | 3180 |
| Latent heat of evaporation( J g⁻¹ ) | 3824 |
| Latent heat of fusion( J g⁻¹ ) | 179.9 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 138@25 |
| Thermal conductivity( W m⁻¹ K⁻¹ ) | 48@0-100°C |
| Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) | 6.6@0-100°C |
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