Permalloy 80 Supermalloy Magnetic Shielding Strip Bright Surface

Brand Name:Ohmalloy
Certification:ISO CE
Model Number:1J79
Minimum Order Quantity:300kg
Delivery Time:within 30 days after payment
Payment Terms:L/C, T/T, Western Union
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Location: Shanghai Shanghai China
Address: Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Supplier`s last login times: within 1 hours
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Product Details

Supermalloy magnetic shielding made by permalloy 80 strip Soft Magnetic alloy

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%

Ni78.5~80.0FeBal.Mn0.6~1.1Si0.3~0.5
Mo3.8~4.1Cu≤0.2
C≤0.03P≤0.02S≤0.02


Typical Mechanical properties

Yield strengthTensile StrengthElongation
MpaMpa%
98010303~50

The magnetic properties of alloys with high permeability in weak fields
1J79Initial permeabilityMaximum permeabilityCoercivitySaturation magnetic induction intensity

Cold-rolled strip/ sheet.

Thickness, mm

μ0.08/ (mH/m)μm/ (mH/m)Hc/ (A/m)BS/ T
0.01 mm17.587.55.60.75
0.1~0.19 mm25.0162.52.4
0.2~0.34 mm28.0225.01.6
0.35~1.0 mm30.0250.01.6
1.1~2.5 mm27.5225.01.6
2.6~3.0 mm26.3187.52.0
cold drawn wire
0.1 mm6.3506.4
Bar
8-100 mm251003.2


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/ 10-62.0
Curie point Tc/ ℃450




Contact us

Janey

Ohmalloy Material Co., Ltd

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

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

Email: tina@ohmalloy.com



China Permalloy 80 Supermalloy Magnetic Shielding Strip Bright Surface supplier

Permalloy 80 Supermalloy Magnetic Shielding Strip Bright Surface

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