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Permalloy 80 Soft Magnetic Alloys 1J79 Kovar Wire Bright Surface

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Permalloy 80 Soft Magnetic Alloys 1J79 Kovar Wire Bright Surface

Brand Name : Ohmalloy

Model Number : 1J79

Certification : ISO CE

Place of Origin : China

MOQ : 300kg

Price : USD 35/kg

Payment Terms : L/C, T/T, Western Union

Supply Ability : 10000kg/week

Delivery Time : within 30 days after payment

Packaging Details : coil

Chemical composition : Ni Fe Co V

Shape : strip

Application : used for Soft Magnetic Cores

Dimensions : Customzied

Color : Silver White

Surface : Bright

Density : 8.2g/cm3

Usage : soft magnetic material

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Product brief introduction

Ohmalloy-1J79 is a nickel–iron magnetic alloy, with about 80% nickel and 20% iron content. Invented in 1914 by physicist Gustav Elmen at Bell Telephone Laboratories, it is notable for its very high magnetic permeability, which makes it useful as a magnetic core material in electrical and electronic equipment, and also in magnetic shielding to block magnetic fields. Commercial permalloy alloys typically have relative permeability of around 100,000, compared to several thousand for ordinary steel.

Normal composition%

Ni 78.5~80.0 Fe Bal. Mn 0.6~1.1 Si 0.3~0.5
Mo 3.8~4.1 Cu ≤0.2
C ≤0.03 P ≤0.02 S ≤0.02


Typical Mechanical properties

Yield strength Tensile Strength Elongation
Mpa Mpa %
980 1030 3~50

The magnetic properties of alloys with high permeability in weak fields
1J79 Initial permeability Maximum permeability Coercivity Saturation magnetic induction intensity

Cold-rolled strip/ sheet.

Thickness, mm

 μ0.08/ (mH/m) μm/ (mH/m) Hc/ (A/m) BS/ T
≥ ≤
0.01 mm 17.5 87.5 5.6 0.75
0.1~0.19 mm 25.0 162.5 2.4
0.2~0.34 mm 28.0 225.0 1.6
0.35~1.0 mm 30.0 250.0 1.6
1.1~2.5 mm 27.5 225.0 1.6
2.6~3.0 mm 26.3 187.5 2.0
cold drawn wire
0.1 mm 6.3 50 6.4
Bar
8-100 mm 25 100 3.2


Typical Physical properties

Density (g/cm3) 8.6
Electrical resistivity at 20℃(Ωmm2/m) 0.55
Coefficient of linear expansion(20℃~200℃)X10-6/℃ 10.3~11.5
Saturation magnetostriction coefficient λθ/ 10-6 2.0
Curie point Tc/ ℃ 450

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Permalloy 80 Soft Magnetic Alloys 1J79 Kovar Wire Bright Surface Janey

Ohmalloy Material Co., Ltd

Add: No. 1211, Mudanjiang Road, Baoshan district, Shanghai

Mob./ Whatsapp/wechat/skype: +86-13805769652

Email: tina@ohmalloy.com



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1J79 Kovar Wire

      

Permalloy 80 Soft Magnetic Alloys

      

Bright Surface Soft Magnetic Alloys

      
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