CoB3W3

metal

· JVASP-24610· CoB3W3

CoB3W3 is a cobalt-tungsten boride compound, part of the refractory metal boride family known for extremely high hardness and thermal stability. This material is primarily of research and specialized industrial interest, valued in applications requiring exceptional wear resistance and thermal shock tolerance where conventional cemented carbides or ceramics fall short. Its high density and hardness characteristics make it relevant for cutting tools, abrasive applications, and high-temperature structural components, though limited commercial availability and processing complexity mean adoption remains restricted to demanding niche applications rather than mainstream use.

Refractory cutting toolsWear-resistant coatingsHigh-temperature applicationsAbrasive materialsResearch/specialty alloysHardened tool inserts

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	14.60	kg/m³	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—
Seebeck Coefficient(S)	7.927	µV/K	—

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.1169	eV/atom	—
Formation Energy(ΔHf)	-0.3923	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.

CoB3W3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control