Fe
metal· Fe
Iron (Fe) is a transition metal and the fourth most abundant element in the Earth's crust, serving as the foundational element in steels and cast irons—the most widely used structural metals in engineering. It is valued for its high strength-to-weight ratio, excellent workability, and low cost, making it the default choice for structural applications across virtually every industry. Iron's versatility stems from its ability to form alloys with carbon and other elements, enabling engineers to tailor properties for everything from soft, ductile applications to hard, wear-resistant components.
structural steel constructionautomotive bodies and chassismachinery and equipment framespipelines and pressure vesselsfasteners and hardwarecast iron wear parts
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Bulk Modulus(K)2 entries | 182.5 | GPa | — | ||
| ↳ | 201.4 | GPa | — | ||
Elastic Compliance Tensor(Sij) | Matrix (redacted) | 1/GPa | — | ||
Elastic Anisotropy(AU) | 0.6096 | - | — | ||
Elastic Stiffness Tensor(Cij) | Matrix (redacted) | Pa | — | ||
Poisson's Ratio(ν)2 entries | 0.3222 | - | — | ||
| ↳ | -0.03000 | - | — | ||
Shear Modulus(G)2 entries | 73.61 | GPa | — | ||
| ↳ | 25.42 | GPa | — |
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.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 8.224 | kg/m³ | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 0.000 | eV | — | ||
Magnetic Moment(μB) | 2.172 | µB | — | ||
Seebeck Coefficient(S) | 4.790 | µV/K | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | 0.000 | eV/atom | — | ||
Formation Energy(ΔHf) | 0.00854 | 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.