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Elmet Technologies

Cunife® Hard Magnetic Alloy
Categories: Metal; Electronic/Magnetic Alloy; Nonferrous Metal; Copper Alloy

Material Notes: 20Fe-20Ni-60Cu

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Physical PropertiesMetricEnglishComments
Density 8.60 g/cc0.311 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell B 9595
Tensile Strength, Ultimate 688 MPa99800 psi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000180 ohm-cm0.0000180 ohm-cm
Magnetic Coercive Force, Hc 553 Oe553 Oe
Magnetic Remanence, Br 5400 Gauss5400 Gauss
Magnetic Maximum Energy Product, BH 1.51 MGOe1.51 MGOe
Curie Temperature 410 °C770 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear 12.0 µm/m-°C6.67 µin/in-°F
Maximum Service Temperature, Air 350 °C662 °F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 60 %60 %
Iron, Fe 20 %20 %
Nickel, Ni 20 %20 %
 
Descriptive Properties
Demagnetization Induction, Bd (Tesla)0.4
Intrinsic Magnetic Coercive Force, HCi (Oe)553

References for this datasheet.

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