Fe7C3 — Properties & Data | MatWorld

Fe7C3

metal

· Fe7C3

Fe7C3 is an iron carbide compound belonging to the family of transition metal carbides commonly found in cast irons and steel microstructures. This phase appears in high-carbon steels and cast iron systems where it forms as a precipitate or constituent phase, contributing to hardness and wear resistance but reducing toughness. Engineers encounter Fe7C3 primarily as an undesired or controlled secondary phase in ferrous metallurgy rather than as a deliberately selected bulk material; its presence and morphology are managed through heat treatment and composition control to optimize mechanical properties for specific applications.

Cast iron microstructure controlHigh-carbon steel hardeningWear-resistant coatingsTool steel optimizationCarbide precipitation managementMetallurgical phase engineering

Compliance & Regulations

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

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	242.4	GPa	DFT
↳	242.4	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.01740	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)	0.3319	-	DFT · PBE
Shear Modulus(G)2 entries	91.77	GPa	DFT
↳	91.77	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)	7.842	kg/m³	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.02980	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.02633	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.

Fe7C3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

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