FeRh

metal
· FeRh

FeRh is an intermetallic compound combining iron and rhodium, belonging to the class of transition metal alloys known for their magnetic and thermal properties. This material is primarily studied in research contexts for its magnetocaloric and magnetostructural characteristics, particularly its temperature-dependent magnetic phase transitions. FeRh is of interest in advanced applications requiring precise control of magnetic behavior across temperature ranges, though it remains largely experimental rather than widely deployed in conventional engineering.

magnetocaloric cooling systemsmagnetic phase transition researchhigh-temperature magnetic devicesthermal energy conversionaerospace thermal management (experimental)magnetic actuation systems

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)3 entries
28,527.6
ksi
28,527.6
ksi
26,291
ksi
Elastic Compliance Tensor(Sij)
Matrix (redacted)
1/GPa
Elastic Anisotropy(AU)
0.7989
-
Elastic Stiffness Tensor(Cij)
Matrix (redacted)
ksi
Poisson's Ratio(ν)2 entries
0.3221
-
0.09000
-
Shear Modulus(G)3 entries
11,513.4
ksi
11,513.4
ksi
1,972.5
ksi
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
PropertyValueUnitConditionsSource
Density(ρ)
0.3870
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV
Magnetic Moment(μB)
0.00200
µB
Seebeck Coefficient(S)
-9.530
µV/K
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.1259
eV/atom
Formation Energy(ΔHf)
0.1240
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.
FeRh — Properties & Data | MatWorld