TaB4W3

metal

· JVASP-100801· TaB4W3

TaB4W3 is a refractory metal boride compound combining tantalum, boron, and tungsten—materials known for exceptional hardness and thermal stability. This is a research or specialized-use composition rather than a commodity alloy; the tantalum-boron-tungsten system is investigated for applications requiring extreme hardness, high-temperature strength, and wear resistance beyond what conventional tool steels or single-phase borides can provide. Engineers would consider this material where ultra-hard cutting tools, thermal barrier coatings, or high-stress refractory applications demand superior performance in harsh environments.

hardening coatings and wear surfaceshigh-temperature refractory applicationsadvanced cutting tool insertsspecialized research applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.5405	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)	0.2002	eV/atom	—
Formation Energy(ΔHf)	-0.4184	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.

TaB4W3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control