BeOsW

metal

· JVASP-69461· BeOsW

BeOsW is a quaternary metal alloy combining beryllium, osmium, and tungsten—a rare combination not widely documented in mainstream engineering literature, suggesting either experimental development or a specialized proprietary composition. This material likely targets extreme-environment applications where the high density and refractory properties of osmium and tungsten are balanced with beryllium's lightweight characteristics; however, beryllium's toxicity in powder form and the extreme cost and scarcity of osmium severely limit practical adoption. Engineers considering this material should verify its documented performance data and supply chain feasibility, as it appears to exist primarily in research or niche aerospace/defense contexts rather than standard industrial use.

High-temperature refractory applicationsAerospace/defense researchRadiation shieldingSpecialized research alloysDensity-critical components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5632	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)	0.2487	eV/atom	—
Formation Energy(ΔHf)	0.01424	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.

BeOsW

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control