High Performance Powdered Metal (PM) Soft Magnetic Alloys

Material

PSM Code

Density G/CC 

Induction BMAX-15 Oe K-Gauss (G)

Remanence Br K-Gauss (G)

Maximum Permeability K-Gauss/
OERSTED

Coercive Force Hc OERSTED

Ultimate Tensile Strength PSI (A)

Elongation % 

Equivalent ASTM Spec

Application

Iron

F-241-S1

6.8/7.0

11.2

9.7

5.3

2.0

29,000

7

B310-70, TYPE III, CLASS A

DC magnetic applications such as pole pieces, cores, armatures, generator rotors and stator cores.

F-241-S2

7.0/7.2

12.6

10.2

5.3

1.7

34,000

11

B310-70, TYPE IV, CLASS A

F-241-T

7.2/7.5

13.0

11.8

5.3

1.7

40,000

19

B310-70, TYPE V, CLASS A

Silicon Iron

FS-1602

7.1/7.3

13.0

11.4

8.8

1.1

48,900

5

N/A

DC magnetic applications such as armatures, relays, solenoids, pole pieces and cores. Possible AC uses.

FS-1601

7.1/7.3

13.0

11.8

7.8

1.2

57,800 

10

N/A

FS-1603

7.0/7.3

11.9

5.1

9.1

1.1

65,000

9.5

N/A

Phosphorous Iron

FP-1650-S

7.0/7.2

12.7

10.1

3.7

1.2

51,200

12

N/A

For applications requiring high yield strength and toughness.
Magnetic properties superior to iron, but slightly inferior to silicon iron.

Iron Nickel

FN-252-S

7.0/7.2

10.0

7.0

13.3

0.4

43,500

10

N/A

Very low coercive force and high permeability.
Excellent for shielding and switching applications.