Co4B

metal

· JVASP-144680· Co4B

Co₄B is a cobalt-boron intermetallic compound that belongs to the family of transition metal borides, which are known for high hardness and thermal stability. This material is primarily of research and development interest rather than established industrial production, with potential applications in hard coatings, wear-resistant surfaces, and high-temperature structural applications where cobalt's strength and boron's hardening effects are leveraged together.

wear-resistant coatingshard surface applicationshigh-temperature compositesresearch material developmentboride reinforcement phasecutting tool research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.443	kg/m³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.05200	eV/atom	—
Formation Energy(ΔHf)	-0.09931	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.

Co4B

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control