Ferrite Magnet

Short Description:

Ferrite magnets are used in applications where magnets can be, or need to be relatively large and the cost needs to be as low as possible. Ferrite Magnets are easily identified by their dark graphite grey colour, they are very inert, they do not rust and do not require any protective plating. They have a reasonable resistance to demagnetisation and can operate at temperatures up to 180 degrees C. Ferrite magnets are used extensively for ‘holiday fridge magnets’, for large loudspeakers (partic...


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Ferrite magnets are used in applications where magnets can be, or need to be relatively large and the cost needs to be as low as possible.

Ferrite Magnets are easily identified by their dark graphite grey colour, they are very inert, they do not rust and do not require any protective plating. They have a reasonable resistance to demagnetisation and can operate at temperatures up to 180 degrees C.

Ferrite magnets are used extensively for ‘holiday fridge magnets’, for large loudspeakers (particularly bass or subwoofers) and for magnetic conveyor systems where large areas underneath conveyor belts need to be magnetic, but must not be ferociously strong.

Ferrite magnets are considerably weaker than Neodymium magnets, but offer an excellent strength and depth of field when their size or volume becomes relatively large.

The elements of Ferrite magnet areferricoxide,barium,strontium.
Ferrite has highter coercive force and highter resistance to bedemaagnetized and oxidized than other non-rare earth permanent maagnets.The biggest advanttage of such magnet is their low cost.It is widely used from motors and loudspeakers to toys and craft etc..

Typical physical properties:Density 5.0 g/cm3

Chinese standard

Grade

Br

Hcb

Hci

(BH)max

MT

KG

KA/M

Koe

KA/m

Koe

KJ/m3

MGOe

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

3.2-3.8

135-190

1.70-238

140-195

1.76-2.45

18.0-22.0

23-2.8

Y22H

310-360

3.1-3.6

220-250

2.77-3.14

280-320

3.52-4.02

20.0-24.0

2.5-3.2

Y23

320-370

3.2-3.7

170-190

2.14-238

190-230

2.39-2.89

20.0-25.5

2.5-3.2

Y25

360-400

3.6-4.0

135-170

1.70-2.14

140-200

1.76-2.51

22.5-28.0

2.835

Y26H

360-390

3.6-3.9

220-250

2.77-3.14

225-255

2.83-3.21

23.0-28.0

293.5

Y27H

370-400

3.7-4.0

205-250

2.58-3.14

210-255

2.64-3.21

25.0-29.0

3.1-3.7

Y30

370-400

3.7-4.0

175-210

2.2-2.64

180-220

2.64-2.77

26.0-30.0

33-3.8

Y30BH

380-390

3.8-3.9

223-235

2.80-2.95

231-245

2.90-3.08

27.0-30.0

34-3.7

Y30-1

360-400

3.6-4.0

135-170

1.70-2.14

140-200

1.76-2.51

22.5-28.0

28-3.5

Y10T

380-400

3.8-4.0

230-275

2.89-3.46

235-290

2.95-3.65

27.0-32.0

344.0

Y20-2

395-415

3.95-4.15

275-300

3.46-3.77

310-335

3.90-4.21

28.5-32.5 3.5-4.0

Y32

400-420

4.0-4.2

160-190

2.01-2.38

165-195

2.07-2.45

30.0-33.5

3.842

Y33

410-430

4.1-4.3

220-250

2.77-314

225-255

2.83-3.21

31.5-35.0

4.0-4.4

Y35

400-410

4.00-4.10

175-195

2.20-2.45

180-200

2.26-2.51

30.0-32.0

3.8-4.0

USA standard

Material

Br

Hcb

Hcj

(BH)max

mT

KG

KA/m

KOe

KA/m

KOe

KJ/m3

MGOe

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

21.9

2.75

C8(C8A)

385

3.85

235

2.95

242

3.05

27.8

3.5

C9

380

3.8

280

3.516

320

4.01

26.4

3.32

C10

400

4

288

3.617

280

3.51

30.4

3.82

C11

430

4.3

200

2.512

204

2.56

34.4

4.32

 

 


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