FeCoSi

metal

· JVASP-151008· FeCoSi

FeCoSi is an iron-cobalt-silicon ternary alloy combining ferromagnetic iron and cobalt with silicon as a strengthening and functional element. This material family is primarily researched and used in soft magnetic applications where high saturation magnetization and controlled permeability are critical, particularly in electrical machinery, transformer cores, and electromagnetic devices where efficiency and performance at elevated temperatures are important.

soft magnetic corestransformer laminationselectromagnetic actuatorshigh-frequency inductive componentsenergy conversion devicesmagnetic sensor applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2630	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	6.951	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.04310	eV/atom	—
Formation Energy(ΔHf)	-0.3219	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.

FeCoSi

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control