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Soft Magnetic Alloy 1J50

Soft Magnetic Alloy 1J50

Soft magnetic alloy-1J50(Common Name: Ni50, E11a, 50H, Hy-Ra49, PB)1J50 is a nickel–iron magnetic alloy, with about 50% nickel and 48% iron content. It is derived in accordance with permalloy. It has

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Soft magnetic alloy-1J50

(Common Name: Ni50, E11a, 50H, Hy-Ra49, PB)

1J50 is a nickel–iron magnetic alloy, with about 50% nickel and 48% iron content. It is derived in accordance with permalloy. It has characteristics of high permeability and high saturation magnetic flux density.

Alloy melting in a vacuum medium, cast into ingots, after hot forging blanks made of sheet metal, and then after hot rolling, pickling, surface treatment, cold rolling into finished products.

1J50 Iron-nickel alloy( soft magnetic alloy) mostly in an alternating magnetic field used mainly for high magnetic yoke, sensitive relays, low-loss micro-motor, small power transformers, pulse transformer, transistor switches, magnetic amplifier magnetic modulator, sensitive signal input and output transformers, magnetic heading aviation instrumentation magnetic sensor, magnetic susceptibility measurement instrument components, precision meter movable piece and the stator magnetic shielding and magnetic temperature compensation element.

Normal composition%

Ni

49.0~51.0

Fe

Bal.

Mn

0.3~0.6

Si

0.15~0.3

Mo

-

Cu

≤0.2





C

≤0.03

P

≤0.02

S

≤0.02




Typical Mechanical properties

Yield strength

Tensile Strength

Elongation

Mpa

Mpa

%

685

780

3~35


Typical Physical properties

Density (g/cm3)

8.2

Electrical resistivity at 20℃(Ωmm2/m)

0.45

Coefficient of linear expansion(20℃~200℃)X10-6/℃

9,2

Saturation magnetostriction coefficient λθ/ 10-6

25,0

Curie point   Tc/ ℃

500


The magnetic properties of alloys with high permeability in weak fields

1J50

Initial permeability

Maximum permeability

Coercivity

Saturation magnetic induction intensity

Сold-rolled strip/ sheet.

Thickness, mm

μ0.08/ (mH/m)

μm/ (mH/m)

Hc/ (A/m)

BS/ T

0.05 mm

2.5

35

20


1.5

0.1~0.19 mm

3.8

43.8

12

0.2~0.34 mm

4.4

56.3

10.4

0.35~1.0 mm

5.0

65

8.8

1.1~2.5 mm

3.8

44.0

12

Bar


8-100 mm

3.1

25.0

24


Mode of heat treatment  1J79

Annealing media

Vacuum with a residual pressure not higher than 0.1Pa, hydrogen with a dew point of not higher than minus 40 ℃.

The heating temperature and rate

1100~1150℃

Holding time/h

3~6

Cooling rate

With 100 ~ 200 ℃/ h cooled to 600 ℃, Rapid cooling to 300 baked

Style of supply

Alloys Name

Type

Dimension


1J50

Wire

D= 0.1~8mm


1J50

Strip

W= 8~390mm

T= 0.3mm

1J50

Foil

W= 10~100mm

T= 0.01~0.1

1J50

Bar

Dia= 8~100mm

L= 50~1000

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