Hf9BW4

metal

· JVASP-139852· Hf9BW4

Hf9BW4 is a hafnium-based refractory metal alloy containing tungsten and boron, designed for extreme-temperature and high-strength applications. This material belongs to the family of ultra-high-temperature ceramics and refractory alloys, which are typically employed in aerospace, nuclear, and specialized industrial environments where conventional superalloys reach their performance limits. The addition of tungsten and boron to hafnium enhances hardness, melting point, and oxidation resistance, making it particularly valuable for applications demanding exceptional thermal stability and structural integrity at temperatures where most competing materials degrade.

hypersonic vehicle componentsnuclear reactor applicationshigh-temperature turbine systemsrefractory coatings and linersaerospace propulsion systemsthermal barrier materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5246	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)	0.2628	eV/atom	—
Formation Energy(ΔHf)	-0.00416	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.

Hf9BW4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control