Re
metal· Re
Rhenium (Re) is a refractory transition metal with exceptional high-temperature stability and one of the highest melting points of all elements. It is used primarily in superalloys for aerospace engines, as a catalyst in petroleum refining, and in electrical contact applications where extreme thermal resistance is required. Engineers select rhenium when conventional nickel- or cobalt-based alloys reach their temperature limits, though its high density, cost, and scarcity make it a material of last resort reserved for critical, high-performance applications.
turbine blades and engine componentshigh-temperature aerospace propulsionsuperalloy strengtheningcatalyst systemselectrical contacts and thermocouples
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 365.1 | GPa | — | ||
| ↳ | 363.9 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.1026 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.2953 | - | — | ||
| ↳ | 0.3000 | - | — | ||
Shear Modulus(G)2 entries | 173.1 | GPa | — | ||
| ↳ | 170.7 | GPa | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 20.41 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.000 | µB | — | ||
Seebeck Coefficient(S) | -3.750 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.06470 | eV/atom | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Export Control
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.