FeCrCoMagnet are primarily of the Iron-Chromium-Cobalt composition. Some grades may also contain additions of
vanadium, silicon, titanium, zirconium, manganese, molybdenum or aluminum. We call them “machinable Alnico”, because they have very similar performance with Alnico Magnet,but they can be machined easily prior to heat treatment.

      <ul class="check">
        <li>FeCrCo also have good performance on temperature, their max operating temp. can reach 450°C. </li>
        <li>Very machinable, all the magnets are very brittle expecially those rare earth magnets. FeCrCo is the only permanent magnetic material that can be machined by lots of method like drilling, press and all of the method can be used on any alloys Piror to their heat treatment(a process for making their magnetic properties.</li>
        <li>FeCrCo is a material similar to Alnico that orient their magnetic direction( just for anisotropic) in heat treatment process. And also a material can form to shapes directly (rare earth magnets are usually cut from a standard magnet blocks,because they are orient during pressing process.)</li>
        <li>FeCrCo can be made to a kind of special magnetic properties that have very low Hc but pretty Br, that have special usages.</li>
      </ul>

Typical Magnetic Properties

TYPICAL MAGNETIC PROPETIES OF IRON-CHROMIUM-COBALT MAGNETS
(US STANDARD)
GradeResidual induction(Br)Coercive Force(Hcb)(BH)maxMark
Br:Residual induction /Hcb:Coersive Force /Hcj:intrinsic Coersive Force /(BH)max:Max Energy Product
 kGs(mT)kA/m(kOe)kJ/M3(MGOe) 
Fe Cr Co 18.8(880)37(0.46)12.7(1.60)Isotropic
Fe Cr Co 29.9(990)28(0.35)12.7(1.60)Isotropic
Fe Cr Co10.5(1050)16(200)8.0(1.00)Isotropic
Fe Cr Co 19.0(900)39(490)13.0(1.63)Isotropic
Fe Cr Co 513.5(1350)48(600)41.8(5.25)anisotropic
Fe Cr Co 25014.0(1400)20(250)15.9(2.00)anisotropic
Fe Cr Co 64012.0(1200)51(641)35.0(4.4)anisotropic
TYPICAL MAGNETIC PROPETIES OF IRON-CHROMIUM-COBALT MAGNETS
(CN STANDARD)
GradeResidual induction(Br)Coercive Force(Hcb)Coercive Force(Hcj)(BH)maxMark
Br:Residual induction /Hcb:Coersive Force /Hcj:intrinsic Coersive Force /(BH)max:Max Energy Product
 kGs(mT)kA/m(kOe)kA/m(kOe)kJ/M3(MGOe) 
FeCrCo10/3820(8.2)340(27)360(29)10(1.25)Isotropic
FeCrCo12/4800(8.0)500(40)530(42)12(1.5)Isotropic
FeCrCo28/51000(10)570(45)580(46)28(3.5)anisotropic
FeCrCo30/41150(11.5)500(40)510(41)30(3.8)anisotropic
FeCrCo35/51050(10.5)630(50)640(51)35(4.4)anisotropic
FeCrCo36/51200(12.0)660(52)680(54)36(4.5)anisotropic
FeCrCo44/41300(13.0)560(44)570(45)44(5.5)anisotropic
FeCrCo52/51350(13.5)600(48)620(49)52(6.5)anisotropic
THERMAL PROPERTIES OF IRON-CHROMIUM-COBALT MAGNETS
MMPA
Class
Reversible
Temperature Coefficient Br
% Change per ºC
(–50 to +200ºC)
Curie
Temperature ºC
Max Service
Temperature ºC
The listed values are approximate and should be used as a reference.  Any magnetic or physical characteristics should be substantiated before selecting a magnet material. 
FeCrCo 20.036640500
FeCrCo 50.020640500
FeCrCo 2500.030640500
PHYSICAL PROPERTIES OF IRON-CHROMIUM-COBALT MAGNETS
Electrical
Resistivity
Ohm-cm x10-6
(at 20ºC)
Thermal
Conductivity
W/(m • K)
Coefficient
Of Thermal
Expansion
10-6/ºC
The listed values are approximate and should be used as a reference.  Any magnetic or physical characteristics should be substantiated before selecting a magnet material. 
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