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铁氧体磁铁
    发布时间: 2026-04-10    
铁氧体磁铁

铁氧体磁铁属烧结永磁材料，由钡和锶铁体组成，这种磁材除了有较强的抗退磁性能，还 有成本低廉的优势。铁氧体磁铁刚硬易脆，需要特殊的机械加工工艺。其异性磁体因沿制 造方向取向，须沿所取方向充磁，而其同性磁体因没有取向，则可沿任何方向充磁，尽管 在受压面常常是最小的一面会发现稍强的磁感应。由于成本低廉，铁氧体磁铁有广阔的应用 领域，从电机、扬声器到玩具、工艺品，因而是目前应用最广的永磁材料。

Ferrite magnets are sintered permanent magnetic materials composed of barium and strontium iron.In   addition to strong anti-demagnetization properties,this magnetic material has the advantage of low  cost.Ferrite  magnets  are  hard  and  brittle,and  require  special  machining  processes.Because  the   magnets of the opposite sex are oriented along the manufacturing direction,they must be magnetized   in the direction taken,and the magnets of the same sex can be magnetized in any direction because   they are not oriented,although a slightly stronger magnetic induction is often found on the side under  pressure which is the smallest.Due to its low cost,  ferite magnets have a wide range of applications,   from motors,speakers to toys and handicrafts,so they are currently the most widely used permanent  magnet materials.

铁氧体磁铁磁性能

Magnetic properties of ferrite magnets


牌号

Grade

TDK Grade


剩磁(Br)


磁感矫顽力

(HcB)


内禀矫顽力

(HcJ)


最大磁能积

(BH)

mT     KGauss

KA/m      KOe

KA/m      KOe

KJ/m3    MGOe

Y29H-1

FB6E


370~3903.60~3.80

275-305  3.40-3.70

380-410  4.80-5.08

25.0-29.0 3.1-3.6

Y30H-1

FB3N

380~4003.80~4.00

230-275  2.89-3.46

235-290  2.95-3.64

27.0-32.5 3.4-4.1

Y30H-2

FB5H

395～4153.95~4.15

275-3003.45-3.77

310-335  3.89-4.20

27.0-32.0 3.4-4.0

Y32

FB4A

400~4204.00~4.20

160-190 2.01-2.39

165-195 2.07-2.45

30.0-33.5 3.8-4.2

Y32-2


FB5D

400~4204.00~4.20

190-230  2.39-2.89

230-250 2.89-3.14

31.5-35.0 3.9-4.4

Y33

-----

410~4304.10~4.30

220-250  2.76-3.14

225-255 2.83-3.20

31.5-35.0 3.9-4.4

Y33H

FB5B

410～4304.10～4.30

250-2703.14-3.70

250-275  3.14-3.45

31.5-35.0 3.9-4.4

Y33H-2

FB6B

410~4304.10~4.30

285-315  3.58-3.96

305-335 3.83-4.21

31.8-35.0 4.0-4.4

Y34H-1

-----

420~4404.20~4.40

230-260 2.39-3.27

240-270 3.02-3.39

32.4-35.6 4.1-4.5

Y35

FB5N

430~4504.30~4.50

215-239  2.70-3.00

217-241  2.73-3.03

33.1-38.2 4.1-4.8

Y36

FB6N

430~4504.30~4.50

247-271  3.10-3.40

250-274  3.14-3.44

35.1-38.3 4.4-4.8

Y38

------

440~4604.40~4.60

285-305  3.58-3.83

294-310 3.69-3.89

36.6-40.6 4.6-5.1

Y40

F9B9

440~4604.40~4.60

330-3544.15-4.45

340-360  4.27-4.52

37.6-41.8 4.7-5.2

Y41

FB9N

450~4704.50~4.70

255-285  3.20-3.58

265-295  3.33-3.71

39.6-42.8 5.0-5.4

Y41H

FB12H

450~4704.50~4.70

330-355 4.15-4.46

415-445  5.21-5.59

39.6-42.8 5.0-5.4

Y42

FB12B

460~4804.60~4.80

325-345  4.08-4.34

365-395  4.58-4.96

41.5-44.7 5.2-5.6

Y42H

FB14H

460~4804.60~4.80

335-355 4.21-4.46

410-450 5.15-5.65

41.5-44.7 5.2-5.6

Y43

FB13B

465~4854.65~4.85

340-360 4.27-4.52

360-400 4.52-5.03

42.4-45.6 5.3-5.7


物理特性 

Physical Characteristics



材料牌号

物理特性        Material

Y30H4

Y33H-2

Y34H-2

Y35

Y32

Y30H-3

Y33

Y30H-2

温度范围(℃)

Temperature range

-40~+80

-40~+80

-40~+80

-40~+80

-40~+80

-40~+80

-40~+80

-40~+80

电阻率p(Ω.cm)

Electrical resistivity

10~10

10～10

10~10

10～10

10~10

10~10

10~10

10～10

密度D(g/cm³)

Density

4.8～5.0

4.8～5.0

4.8~5.0

4.8～5.1

4.8～5.1

4.7～5.0

4.8～5.1

4.7～5.0

回复磁导率(rec)

Recoil permeability

1.05～1.03

1.05～1.03

1.05～1.03

1.05～1.03

1.05～1.03

1.05～1.03

1.05～1.03

1.05~1.03

居 里 温 度 θ ( ℃ )

Curie temperature

460.00

460.00

460.00

450~460

450~460

450~460

450～460

450~460

剩磁温度系数Br(%℃) 

Temperature coefficient  of Range

-(0.18~02)

-(0.18~02)

-(0.18~02)

-(0.18~02)

-(0.18~02)

-(0.18~02)

-(0.18～02)

-(0.18~02)

热膨胀系数(10℃)

Linear expansion coefficient

9~15

9~15

9~15

9~15

9~15

9~15

9~15

9~15