Alnico Magnetic Materials Properties Data

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Alnico Magnetic Materials Properties Data









 
Alnico - Magnetic Properties
Grade Type Br (kGauss) Hc (kOersteds) Hci (kOersteds) BHmax (MGOe) Temperature Coefficient Br (%/°C) Maximum Operating Temp
(°C) (°F)
5 C Cast 12,500 640 640 5.5 -0.013 540 ~ 1000
5 S Sintered 10,800 600 600 3.8 -0.007 540 ~ 1000
8 C Cast 8,300 1,650 1,650 5.5 -0.013 540 ~ 1000
8 S Sintered 7,000 1,900 1,900 5.0 -0.013 540 ~ 1000
 
Alnico - Physical Properties
Grade Type* Density (kg/m3) Bending Strength Compressive Strength Electrical Resistivity (Ωm) Coeff. Of Thermal Exp. Curie Temperature
(kg/m3) (lbs/in3) (kg/m2) (lbs/in2) (kg/m2) (lbs/in2) (°C) (°F)
ALL Cast 7.3 x 103 0.265         4.7 x 10-3 11.4 x 10-6 860 1580
ALL Sintered 7.0 x 103 0.255         4.7 x 10-3 11.4 x 10-6 860 1580
 
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