BeCu4W

metal

· JVASP-64983· BeCu4W

BeCu4W is a beryllium-copper-tungsten composite or alloy that combines the lightweight and stiffness benefits of beryllium with copper's electrical and thermal conductivity and tungsten's high density and strength. This material family is used in specialized aerospace, defense, and electronics applications where weight reduction, thermal management, and structural performance must be balanced—notably in missile components, satellite structures, heat sinks for high-power electronics, and precision instrumentation where conventional aluminum or titanium alloys fall short.

aerospace structuressatellite componentshigh-power electronic heat sinksdefense/missile systemsprecision instrumentationthermal management devices

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	23,448.3	ksi	—
Poisson's Ratio(ν)	0.3500	-	—
Shear Modulus(G)	7,855.2	ksi	—

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3552	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	1.351	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.5245	eV/atom	—
Formation Energy(ΔHf)	0.3953	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.

BeCu4W

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control