BeCo
metal· BeCo
BeCo is a beryllium-cobalt alloy that combines the lightweight and stiffness characteristics of beryllium with cobalt's strength and wear resistance. This binary metal system is found in specialized aerospace, defense, and precision engineering applications where weight reduction and high specific stiffness are critical performance drivers. Engineers select beryllium-cobalt alloys when conventional aluminum or titanium alternatives cannot meet simultaneous demands for low density, high elastic modulus, and thermal stability, though material cost and beryllium toxicity during processing require careful supply chain and manufacturing planning.
aerospace structuresdefense systemsprecision bearingssatellite componentsvibration-critical mechanismshigh-performance springs
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)3 entries | 28,298.3 | ksi | — | ||
| ↳ | 28,298.3 | ksi | — | ||
| ↳ | 29,200.4 | ksi | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.3511 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | ksi | — | ||
Poisson's Ratio(ν)2 entries | 0.2488 | - | — | ||
| ↳ | 0.2600 | - | — | ||
Shear Modulus(G)3 entries | 17,079.7 | ksi | — | ||
| ↳ | 17,079.7 | ksi | — | ||
| ↳ | 17,494.5 | ksi | — |
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) | 0.2340 | lb/in³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 0.3020 | µB | — | ||
Seebeck Coefficient(S) | 8.360 | 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) | -0.3160 | 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.