BeIr4W

metal

· JVASP-65026· BeIr4W

BeIr4W is a quaternary refractory metal alloy combining beryllium, iridium, and tungsten—a composition designed for extreme-temperature and high-density applications. This material represents advanced metallurgical research rather than a commercial commodity, targeting aerospace, nuclear, and specialized defense sectors where conventional superalloys reach performance limits. The combination of beryllium's low density with iridium and tungsten's exceptional refractory properties and density makes this alloy notable for ultra-high-temperature structural components, though manufacturing complexity and beryllium toxicity considerations limit adoption to mission-critical applications where cost and processing difficulty are justified.

hypersonic vehicle structuresnuclear reactor componentshigh-temperature aerospace applicationsrefractory metal researchextreme-environment bearing materialsspace propulsion systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.6147	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)	0.7603	eV/atom	—
Formation Energy(ΔHf)	0.4223	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.

BeIr4W

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control