HfAlW4

metal

· JVASP-100394· HfAlW4

HfAlW4 is a refractory metal alloy combining hafnium, aluminum, and tungsten, designed for extreme-temperature and high-strength applications. This material belongs to the family of advanced refractory alloys that prioritize performance in harsh environments where conventional superalloys reach their limits. While primarily explored in research and development contexts, HfAlW4-type compositions are investigated for aerospace propulsion systems, nuclear reactors, and industrial high-temperature equipment where thermal stability and structural integrity under severe conditions are critical.

aerospace propulsion systemshigh-temperature structural componentsnuclear reactor applicationsrefractory engine componentsextreme-environment materials researchthermal barrier systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5311	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)	0.2476	eV/atom	—
Formation Energy(ΔHf)	-0.2568	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.

HfAlW4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control