BeCuMo

metal

· JVASP-74176· BeCuMo

BeCuMo is a quaternary copper-based alloy containing beryllium and molybdenum, designed to combine the electrical and thermal conductivity of copper with enhanced strength and wear resistance from beryllium and molybdenum additions. This material is primarily used in high-performance electrical contacts, connector systems, and precision tooling where superior conductivity must be paired with mechanical durability and resistance to electrical erosion. Engineers select BeCuMo over pure copper or conventional brass when applications demand both reliable current-carrying capacity and extended service life under arcing or sliding-contact conditions, though handling requires compliance with beryllium occupational safety protocols.

electrical contacts and switchgearhigh-current connectorsprecision die-casting dieselectromagnetic relay contactsaerospace fasteners and bushingsresistance-welding electrodes

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2670	lb/in³	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.4170	eV/atom	—
Formation Energy(ΔHf)	0.2697	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.

BeCuMo

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control