Be2Fe — Properties & Data | MatWorld

Be2Fe

Name: Be2Fe
Brand: MatWorld

metal

· Be2Fe

Be₂Fe is an intermetallic compound combining beryllium and iron, belonging to the class of lightweight metallic intermetallics. This material is primarily of research and specialized industrial interest rather than commodity use, valued for its combination of low density with high stiffness, making it relevant for weight-critical structural applications. The Be-Fe system is explored in aerospace and defense contexts where extreme lightweighting and thermal stability are required, though beryllium's toxicity and cost limit broader adoption compared to conventional aluminum or titanium alloys.

aerospace structureslightweight bearingshigh-stiffness fastenersthermal managementresearch intermetallicsdefense applications

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)3 entries	158.4	GPa	DFT
↳	1.750	GPa	DFT · OptB88vdW
↳	158.4	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.01589	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	-0.1100	-	DFT · OptB88vdW
↳	0.1473	-	DFT · PBE
Shear Modulus(G)3 entries	146.0	GPa	DFT
↳	350.0	MPa	DFT · OptB88vdW
↳	146.0	GPa	DFT · PBE

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
Density(ρ)	4.802	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	6.822	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000211	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000211	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-6.530	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-6.557	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2690	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

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.

Be2Fe

Mechanical Properties

Physical Properties

Electrical Properties

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Regulatory Screening

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