• Huona (Shanghai) New Material Co., Ltd.
    Alfred***
    We received the goods, everything went fine. Perfect packaging, good product quality, good price - we are satisfied.
  • Huona (Shanghai) New Material Co., Ltd.
    May***
    The product quality is very good, beyond my expectations, the actual use of fully meet my needs, we will buy again.
  • Huona (Shanghai) New Material Co., Ltd.
    Matthew***
    I bought low expansion alloy from Joy, She is a very responsible lady, Huona's products quality is pretty good.
Contact Person : Roy
Phone Number : +86 18930254719
WhatsAPP : +8618930254719

1J79 Permalloy Wire Ni79Mo4 Soft Magnetic Nickel Iron Alloy Wire High Permeability Precision Magnetic Wire for Magnetic Shielding & Transformer Applications

Place of Origin Shanghai
Brand Name Huona
Certification ISO9001, SGS, and so on
Model Number 1J79
Minimum Order Quantity negotiation
Price negotiation
Packaging Details Spool + Carton + Wooden Case
Delivery Time 7-20days
Payment Terms T/T
Supply Ability 100 Tons per year
Product Details
Max Continuous Operating Temperature(℃) ≤450 Resisivity(μΩ/cmf,20℃) 60
Density(g/m³) 8.6-8.7 Thermal Conductivity(W/m·K, 20°C) 13.4
Tensile Strength(N/m㎡) 520-690mpa Melting Point(℃) 1400-1435℃
Hardness(Hv) 150-220Hv Elongation(%) ≥30%
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Soft Magnetic Alloy Wire

,

Ni79Mo4 Permalloy Wire

,

High Stability Magnetic Wire

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Product Description

1J79 Permalloy Wire is a high-permeability soft magnetic nickel-iron alloy wire containing approximately 79% nickel and a small amount of molybdenum. It offers excellent magnetic permeability, low coercive force, low core loss, and outstanding magnetic shielding performance. After proper vacuum or hydrogen annealing, the alloy achieves superior soft magnetic properties, making it ideal for precision electromagnetic and electronic applications.

Our 1J79 wire is manufactured using advanced melting and precision drawing processes to ensure consistent chemical composition, excellent dimensional accuracy, and reliable mechanical properties. It is available in various diameters and can be customized to meet specific customer requirements. The wire features a smooth surface finish, excellent ductility, and good workability for winding, forming, and precision machining.


1. Chemical Composition:

Ni

78.5-80.0

Mo

3.8-4.1

Fe

Bal

Mn

≤0.5

Si

≤0.3

C

≤0.03


2. Technical  Specifications:

Parameter

Specification

Max continuous Operating Temperature(℃)

≤450

Resisivity(μΩ/cmf,20℃)

60

Density(g/m³)

8.6-8.7

Thermal Conductivity(W/m·K, 20°C)

13.4

Tensile strength(N/m㎡)

520-690mpa

Melting point(℃)

1400-1435℃

Hardness(Hv)

150-220Hv

Elongation(%)

≥30%

 

3. Production Attributes

Product Form

1J79 wire

Diameter

customization

Surface Finish

Bright, Polished

Packaging Type

Coil, Bundle, Straight Rods

Certification

ISO9001, SGS, and so on

Application Environment

Chemical, Industrial,Home

 

4.Applications

  • Magnetic shielding components and enclosures
  • Precision electromagnetic coils
  • Current transformers (CT) and transformer windings
  • Relays and electromagnetic switches
  • Inductors and choke coils
  • Magnetic sensors and measuring instruments
  • Electronic and communication equipment
  • Aerospace and aviation electronic systems
  • Medical devices and diagnostic equipment
  • Precision instruments and laboratory equipment
  • Electromagnetic actuators
  • High-performance electronic components

5.Key features

  • High initial and maximum magnetic permeability
  • Low coercive force for excellent soft magnetic performance
  • Very low core loss and hysteresis loss
  • Excellent magnetic shielding capability
  • High magnetic sensitivity and stable magnetic properties
  • Good ductility and excellent winding performance
  • Smooth surface finish with high dimensional accuracy
  • Stable chemical composition and reliable performance
  • Excellent heat treatment response (vacuum or hydrogen annealing)
  • Suitable for precision coil winding applications
  • Good corrosion resistance under normal environments
  • Available in multiple wire diameters with custom sizes