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Elmet Technologies

Alnico® 7 (Anisotropic, Cast) Hard Magnetic Alloy
Categories: Metal; Electronic/Magnetic Alloy; Nonferrous Metal

Material Notes: 40Fe-8Al-18Ni-24Co-5Cu-5Ti

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Physical PropertiesMetricEnglishComments
Density 7.30 g/cc0.264 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell C 6060
Tensile Strength, Ultimate 108 MPa15700 psi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000580 ohm-cm0.0000580 ohm-cm
Magnetic Coercive Force, Hc 1056 Oe1056 Oe
Magnetic Remanence, Br 8570 Gauss8570 Gauss
Magnetic Maximum Energy Product, BH 3.77 MGOe3.77 MGOe
Curie Temperature 840 °C1540 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear 11.4 µm/m-°C6.33 µin/in-°F
Maximum Service Temperature, Air 540 °C1000 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 8.0 %8.0 %
Cobalt, Co 24 %24 %
Copper, Cu 5.0 %5.0 %
Iron, Fe 40 %40 %
Nickel, Ni 18 %18 %
Titanium, Ti 5.0 %5.0 %

References for this datasheet.

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MM903 / 100410

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