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0.02m Thickness 1J79 Soft Magnetic Alloys Strip Super Permalloy

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China Ohmalloy Material Co.,Ltd certification
China Ohmalloy Material Co.,Ltd certification
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0.02m Thickness 1J79 Soft Magnetic Alloys Strip Super Permalloy

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Large Image :  0.02m Thickness 1J79 Soft Magnetic Alloys Strip Super Permalloy Get Best Price

Product Details:
Place of Origin: China(Shanghai)
Brand Name: OHMALLOY
Certification: ISO,SGS
Model Number: 1J79
Payment & Shipping Terms:
Minimum Order Quantity: 5kg
Price: negotiable
Packaging Details: in coil
Supply Ability: 100kg/month
Detailed Product Description
Material: Soft Magnetic Alloy Thickness: 0.02mm
High Light:

super permalloy


magnetic steel alloys

Ohmalloy Material Co.,Ltd is a high-tech enterprise which specialized in making all kinds of alloy such as high resistance alloy, low-resistance copper nickel alloy, precision alloy, FeCrAl alloy and thermocouple Alloy.

Ohmalloy Material Co.,Ltd have a full production line from melting, surface cleaning, rolling and slitting, full set of testing machine and can meet all kinds of technical requirement from customer. Our product is widely used in heating equipment, big steel mill, mineral, electrical equipment, food machinery, auto industry, aerospace industry. Our product not only is popular in domestic market, but also been exported to all over the world.

0.02m Thickness 1J79 Soft Magnetic Alloys Strip Super Permalloy 0

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


Typical Physical propertie

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


The magnetic properties of alloys with high permeability in weak fields

1J79 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
0.01 mm 17.5 87.5 5.6












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
8-100 mm 25 100 3.2


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 3~6
Cooling rate With 100 ~ 200 ℃/ h cooled to 600 ℃, rapidly cooled to 300℃



Style of supply

Alloys Name Type Dimension
OhmAlloy-1J79 Wire D= 0.1~8mm
OhmAlloy-1J79 Strip W= 8~390mm T= 0.3mm
OhmAlloy-1J79 Foil W= 10~100mm T= 0.01~0.1
OhmAlloy-1J79 Bar Dia= 8~100mm L= 50~1000

Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Mr. Qiu

Tel: +8613795230939

Send your inquiry directly to us