FeNi — Properties & Data | MatWorld

FeNi

metal

· FeNi

FeNi is an iron-nickel alloy combining the strength and affordability of iron with nickel's corrosion resistance and toughness. This binary system is widely used in aerospace, marine, and automotive applications where moderate strength coupled with environmental durability is required, as well as in precision instruments and magnetic applications where the iron-nickel composition provides controlled electromagnetic properties. Engineers select FeNi alloys when a balance of cost-effectiveness, fabricability, and corrosion resistance is needed—particularly in saltwater exposure or chemically aggressive environments where pure iron would degrade but premium stainless steels would be overspecified.

aerospace structural componentsmarine hardware and fastenersmagnetic cores and transformersautomotive corrosion-resistant partsprecision instrumentschemical equipment housings

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	186.6	GPa	DFT
↳	188.6	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2800	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	91.90	GPa	DFT
↳	105.0	GPa	DFT · OptB88vdW

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Density(ρ)	8.481	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	6.388	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000106	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000126	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-1.450	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-1.580	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00680	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.05368	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

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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.

FeNi

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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