NiFeSi

metal
· NiFeSi

NiFeSi is a ternary iron-nickel-silicon alloy that combines ferromagnetic properties with solid-state strengthening from silicon addition, positioning it between conventional soft magnetic irons and advanced high-performance alloys. It is primarily encountered in soft magnetic core applications, electrical laminations, and electromagnetic device design where controlled permeability and low core losses are required, as well as in research contexts exploring grain-oriented soft magnetic materials and silicon steel variants for power distribution and transformer efficiency. The silicon addition improves electrical resistivity relative to pure Fe-Ni alloys, reducing eddy current losses while maintaining the ferromagnetic saturation and Curie temperature range desirable for AC applications.

electrical transformer coressoft magnetic laminationselectromagnetic actuatorspower electronicsmagnetic shieldinginductive components

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Magnetic Moment(μB)
3.333
μB—
Saturation Magnetization(μB,sat)
767.9
μB—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Formation Energy(ΔHf)
-0.1200
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.
NiFeSi — Properties & Data | MatWorld