Be8 W4

semiconductor

· Be8 W4

Be8 W4 is a beryllium-tungsten composite or alloy in the experimental/research stage, combining the low density and high stiffness of beryllium with the high-temperature strength and density of tungsten. This material family is explored for aerospace and defense applications where extreme weight savings and thermal performance are critical, though beryllium-based materials remain specialized due to toxicity concerns in manufacturing and machining that require strict handling protocols.

aerospace structureshigh-temperature applicationslightweight compositesdefense systemsresearch/prototype developmentthermal management components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.02320	eV	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.2830	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.

Be8 W4

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control