Magnetic Materials

 

Silicon-Iron  Cobalt-Iron Nickel-Iron  Amorphous Metals(Metglas)  Ferrites

The purpose of this page is to give the viewer some idea of the relative magnetic properties of a variety of magnetic materials that can be used in pulsed power, high voltage, and power conditioning applications. The data here has been taken from a number of sources including manufacturers data sheets, etc.  Because actual conditions of measurement may vary, the reader is advised to contact the manufacturer for detailed information once a specific application has been defined.  Several manufacturers may be found on the Links page.

Ness Engineering is NOT a representative or dealer of any of these materials.

Name / Composition

Initial Permeability


Maximum Permeability


Coercivity

Hc (Oe)


Retentivity

Br (G)


Bmax

(G)


Resistivity

 


(mW

-cm)


Curie Temp

(deg C)

Iron, pure

(lab conditions)


25,000


350,000


0.05


12,000


14,000


9.7

Silicon-Iron
Magnesil

3 Si




0.4-0.6


12,750-

15,300


15,000-

18,000


50


750

Silicon-Iron

4 Si


400


7,000


0.5


12,000


20,000


60


690

Hypersil, Trancor3X, Silectron

3.5 Si


1,500


35,000


0.1-0.3


13,700


20,000


50


750

Sendust

9.5 Si, 5.5 Al


30,000


120,000


0.05


5,000


10,000


80


Cobalt-Iron
Hyperco

35 Co, 0.5 Cr


650


10,000


1


13,000


24,000


28


970

Supermendur

49 Co, 2 V




0.15-

0.35


17,100-

19,800


19,000-

22,000


26


940

Permendur 2V

49 Co, 2 V


800


4,500


2


14,000


24,000


25


980

Nickel-Iron
Deltamax, Orthonol

50 Ni


400-

1,700


40,000-

100,000


0.2-0.4


13,000-

15,000


15,500-

16,000


40-50


450-500

Permalloy 65

65-68 Ni


1,500


250,000-

600,000


0.03


13,000


13,000


20


600

Permalloy 78

78 Ni, 0.6 Mn


9,000


100,000


0.05


6,000


10,700


16


580

Mo-Permalloy4-79

79 Ni, 4 Mo


20,000


75,000


0.05


5,500


8,000


55


Supermalloy

79 Ni, 5 Mo


55,000-

150,000


500,000-

1,000,000


0.002-

0.05



6,800-

7,800


65


400

Mumetal

77 Ni, 5 Cu, 2 Cr


20,000


100,000


0.05


6,000


8,000


60


400

Allied Signal Amorphous Metals
 Metglas 2605S3A

35,000

annealed

20,000

as cast


~0.02


14,100


138


358

 Metglas 2605SA1

600,000 annealed

45,000

as cast


~0.09


15,900 annealed

15,700

as cast


130


392

Metglas 2605SC

300,000 annealed

40,000

as cast


~0.15


16,100


135


370

Metglas 2605CO

400,000 annealed

120,000

as cast


~0.04


18,000


123


415

 Metglas 2705M

600,000 annealed

290,000

as cast


~0.013


7,700


136


365

Metglas 2714A

1,000,000 annealed

80,000

as cast


~0.02


5,700


142


225

Ceramic Magnetics Inc.
Mn-Zn Ferrites
MN30

4000


7000


0.13


1300


4600


400


175

MN60LL

6500


10,500


0.08


800


4500


500


185

MN60

6500


10,500


0.08


800


4500


200


185

MN67

1250


8800


0.21


2900


5200


150


280

MN80

2400


6000


0.17


1500


5000


200


230

MN100

10,000


15,500


0.07


700


4500


150


170

MN8CX

2900


3500


0.18


700


4700


1000


185

MC25

9500


12,500


0.06


900


4100


35


125

Ni-Zn Ferrites
CN20

800


4500


0.4


2700


3800


106


170

CMD5005

1600


4500


0.17


1500


3200


109


130

C2025

175


1100


1.5*


2600*


3500*


106


270

C2050

100


390


3.0*


2400*


3400*


107


340

C2075

35


150


7.0*


1800*


2700*


108


420

N40

15


50


7.5


700


1600


1010


510

CMD10

550


1600


0.8


3000


4100


107


230

 


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