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 TMC Magnetics - Products
TMC Magnetics, Inc. offers various magnetic materials for fabrication and distribution. We only work with the world's leading magnet suppliers to insure quality and reliability. Many standard parts are available in stock for immediate release, so please contact us on availability.

Due to the diversity between the different permanent magnetic materials, each offer unique advantages and disadvantages that will fit into your application. We can offer recommendations for your particular application based on our years of experience, and select the appropriate magnetic material for you.

Standard Rating Characteristics of Representative Magnets


Type of magnets

Rare Earth

Ferrite

Alnico Magnet

Item

Unit 

Nd-Fe-b

Sm-Co

Isotropic
Ba-Ferrite

Aniso- tropic
Sr-Ferrite
by Dry

Aniso- tropic
sr-Ferrite
by wet

Alnico-5

Alnico-8

Haimag
Alnico-5 col

Brr

[ kG ]

12.4

10.5

2.2

3.6

4

12.7

8.8

13.5

( mT )

1,240

1,050

220

360

400

1,270

880

1,350

bHc

[ kOe ]

11.6

8

1.9

3

3.3

0.65

1.47

0.75

( kA/m )

923

636

151

238

262

51

117

59

Bhmax

[ MGOe ]

37

24

1

3

3.8

5.3

5.2

7.3

( kJ/ÜG)

294.5

191

8

23.9

30.2

42.2

41.4

58.1

Tempe- rature
charact- eristic
of Br

%/Åé

-0.12

-0.04

-0.18

-0.18

-0.18

-0.02

-0.01

-0.02

Curie point

°C

320

750

460

460

460

850

850

850

Density

g/cÜG

7.4

8.3

4.8

4.8

4.9

7.3

7.3

7.3


( ) indicates SI unit system and [ ] indicates CGS unit system


B-H CURVE OF TYPICAL MAGNETS
Magnetic characteristics and their physical characteristics

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