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ohmalloy insulated heater wire

Soft Magnetic Alloy Wire

Soft magnetic alloy having a high magnetic permeability and low coercive force in a weak magnetic field for a class of alloys. Such alloys are widely used in radio-electronic industry, precision instruments, remote control and automatic control system, mainly used for energy conversion and information processing in two areas.


1.Chemical composition(%)

Grade

C

Si

Mn

P

S

Ni

Cr

Mo

Fe

1J50

0.01

0.17

0.35

0.006

0.005

49.8

0.02


Bal

1J79

0.01

0.38

0.85

0.005

0.003

79.50

0.02

3.95

Bal

1J85

0.01

0.18

0.35

0.005

0.003

80.3

0.02

4.95

Bal


2. Physical properties



Grade



Density(g/cm3)

Thermal expansion coefficient (10-6/℃)


Curie point(℃)


Volume resistivity(μΩ.cm)


Thermal conductivity(W/m.℃)

1J50

8.2

8.2(20~100℃)

498

45(20℃)

16.5

1J79

8.6

11.0(20~100℃)

450

55(20℃)

13.4

1J85

8.75

12.4(20~100℃)

450

56(20℃)

18.7


3. Magnetic properties



Grade


Initial magnetic permeability(mH/m)



Maximum magnetic permeability(mH/m)



Coercive force(A/m)



Saturation magnetic flux density(T)

1J50

》8.0

》50

《10

1.5

1J79

》40

》310

《2.0

0.73

1J85

》60

》280

《2.0

0.7







OHMALLOY can make the alloy wire in dia from 0.5mm to 8mm. Rod dia from 8mm to 200mm.

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