ErFeB4

metal

· JVASP-137615· ErFeB4

ErFeB4 is an intermetallic compound composed of erbium, iron, and boron, belonging to the rare-earth iron boride family of materials. This material is primarily of research interest rather than established industrial production, investigated for its potential magnetic and high-temperature properties inherent to rare-earth iron compounds. Engineers would consider this material for advanced applications requiring rare-earth strengthening or specialized magnetic behavior, though it remains in the developmental phase with limited commercial availability compared to conventional rare-earth permanent magnets or structural alloys.

rare-earth magnetic researchhigh-temperature intermetallicsadvanced permanent magnetsexperimental metallurgyboride compound developmentspecialty alloy research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.923	kg/m³	—

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)	0.000	eV/atom	—
Formation Energy(ΔHf)	-0.6611	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.

ErFeB4

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control