/ / / Alnico Magnetic Materials Properties Data
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
