BeCuSi2
metal· JVASP-71042· BeCuSi2
BeCuSi2 is a beryllium-copper-silicon ternary alloy that combines the high strength and thermal conductivity of beryllium-copper systems with silicon additions for improved wear resistance and hardness. This material family is employed in precision electrical contacts, springs, and wear-resistant bearings where demanding combinations of electrical conductivity, strength, and thermal management are required; it is particularly valued in aerospace and high-reliability electronics applications where conventional copper alloys cannot meet performance thresholds, though beryllium content requires careful handling and surface protection in manufacturing.
electrical contacts and connectorsprecision springs and fastenersbearing surfaces and bushingsaerospace componentsheat-dissipation applicationswear-resistant tooling
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | 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.