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Product > Magnetic Materials > Ceramic Magnet
The elements of Ferrite magnet are ferricoxide、barium、strontium.Ferrite has highter coercive force and highter resistance to bedemagnetized and oxidized than other non-rare earth permanent magnets.The biggest advantage of such magnet is their low cost.It is widely used from motors and loudspeakers to toys and craft etc...
Ceramic Magnet
Code
Remanence Br
Coercivity Force
Coercivity Force
Maximum Energy Product
Br
bHc
iHc
(BH)max
mT
KGs
KA/m
KOe
KA/m
KOe
KJ/m3
MGOe
Sintered
Y10T
200-235
2.0-2.35
125-160
1.57-2.01
210-280
2.64-3.52
6.5-9.5
0.8-1.2
Y20
320-380
3.20-3.80
135-190
1.70-2.38
140-195
1.76-2.45
18.0-22.0
2.3-2.8
Y22H
310-360
3.10-3.60
220-250
2.77-3.14
280-320
3.52-4.02
20.0-24.0
2.5-3.0
Y23
320-370
3.20-3.70
170-190
2.14-2.38
190-230
2.39-2.89
20.0-25.5
2.5-3.2
Y25
360-400
3.60-4.00
135-170
1.70-2.14
140-200
1.76-2.51
22.5-28.0
2.8-3.5
Y26H
360-390
3.60-3.90
220-250
2.77-3.14
225-255
2.83-3.21
23.0-28.0
2.9-3.5
Y27H
370-400
3.70-4.00
205-250
2.58-3.14
210-255
2.64-3.21
25.0-29.5
3.1-3.7
Y30
370-400
3.70-4.00
175-210
2.20-2.64
180-220
2.26-2.77
26.0-30.0
3.3-3.8
Y30H-1
380-400
3.80-4.00
230-275
2.89-3.46
235-290
2.95-3.65
27.0-32.0
3.4-4.1
Y30H-2
395-415
3.95-4.15
275-300
3.46-3.77
310-335
3.90-4.21
28.0-32.5
3.5-4.0
Y32
400-420
4.00-4.20
160-190
2.01-2.38
165-195
2.07-2.45
30.0-33.5
3.8-4.2
Y33
410-430
4.10-4.30
220-250
2.77-3.14
225-255
2.83-3.21
31.5-35.0
4.0-4.4
Bonded
C1
230
2.3
148
1.86
258
3.5
8.36
1.05
C5
380
3.8
191
2.4
199
2.5
27
3.4
C7
340
3.4
258
3.23
318
4.00
21.9
2.75
C8A
385
3.85
235
2.95
242
3.05
27.8
3.5
C8B
420
4.2
232
2.913
236
2.96
32.8
4.12
C9
380
3.8
280
3.516
320
4.01
26.4
3.32
C10
400
4.0
288
3.617
280
3.51
30.4
3.82
C11
430
4.3
200
2.512
204
2.56
34.4
4.32
 
Physical Property

Curie Temperature (°C)

 ≥450

Resistivity (Ω.cm)

 ≥106

Hardness (Hv)

 480-580

Density (g/cm3)

 4.6-5.0

Recoil Permeability (Gs/Oe)

 1.05-1.3

Coefficient of Thermal Expansion (A °C^-1)

 7-15×10^-6

Temperature Coefficient of Br (%/°C)

 -0.2

Temperature Coefficient of iHc (%/°C)

 -0.2-0.5
 
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