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Permanent Ferrite Nd-Fe-B  Rubber Magnet Bond NdFeB Soft Ferrite Magnetic Beads & Clasp Magnet Grade Info

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Permanent Ferrite Magnets  

Hard ferrite (Ceramic) magnets take more than 75% of the world magnet production and have won wide acceptance due to their good resistance to demagnetization, excellent corrosion resistance and low price.

The chemical composition of magnets is iron oxide, barium and strontium elements. SrO-6(Fe2O3)or BaO-6(Fe2O3).    

The type size: Ring & Cylinder  DIA 5-220mm, Block 4-200mm, Segment (tile), ball of magnetic jewellery, Bar & Horseshoe Magnet.

It is the first choice for most types of speaker, DC motors, magnetic separators, MRI (magnetic resonance imaging) and automotive sensors. 


THE CHARACTERISTICS, US MMPA0100-90 STANDARDS.

Grade

Br
 (KGs)  

Hc
 (KOe)  

 Hci 
 (KOe)  

 (BH)max
(MGOe)

 Curie Temp.
(0C)

Max. Op. Temp
(0C)

Ceramic 1

2.2

1.86

3.25

1.10

450

300

Ceramic 5

3.8

2.4

2.5

1.1

450

300

Ceramic 7

3.4

3.25

4.0

2.75

450

300

Ceramic 8

3.85

2.95

3.20

3.5

450

300

Ceramic 10

4.2

2.95

3.05

4.2

450

300

THE CHARACTERISTICS, : IEC,TDK,SJ/T10410-93 STANDARDS.

NO: 

Y8T

Y20

Y22H

Y25

27H

Y28

Y30H-1

Y30H-2

Y32

Y33

  Br

mT

220

350

335

380

385

385

390

400

410

420

kG

2.2

3.5

3.35

3.8

3.85

3.85

3.9

4.0

 4.1

4.2

Hcj

kA/m

140

160

235

150

225

190

250

285

175

235

KOe

1.80

2.14

2.95

1.92

2.83

2.39

3.15

3.59

2.20

2.96

(BH)

max

KJ/m3

7.5

20

22

25

27

28

30

31

32

33

MGOe

1.0

2.5

2.7

3.2

3.4

3.5

3.6

3.7

4.0

4.2

NO:

IEC-

7/21

C5

IEC

20/28

ISM

PA320

TDK

FB3X

IEC

25/14

TDK

FB4B

TDK

FB5H

TDK

FB4A

TDK

FB4X

The Direction of Magnetization:

1) Axially magnetized orientation,     2) Radially magnetized through diameter,

3) Multiple pole magnetized  axially, 4) Multiple pole magnetized  radially.

 

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