NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance

Brand Name:Senphus
Certification:SGS, ISO9001
Model Number:NF32
Minimum Order Quantity:5 kg
Delivery Time:3 days
Payment Terms:T/T, D/P
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Location: Changzhou Jiangsu China
Address: Building 3, No. 29, Beitanghe East Road, Qinglong Street, Tianning District, Changzhou City, Jiangsu Province
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NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content for Stable Resistance in Various Environments Resistance 0.32


The product exhibits a resistivity of 0.32 at a temperature of 20°C, with a tolerance range of ±0.02.


NF32 PTC Ni-Fe Alloy Wire (Ni 50%-55%) is a nickel-iron alloy designed for applications requiring precise thermal and electrical properties. Its Positive Temperature Coefficient (PTC) behavior ensures that resistivity increases with temperature, making it ideal for temperature sensing, control, and overcurrent protection devices. The wire exhibits excellent magnetic properties, including high permeability and low coercivity, which make it suitable for soft magnetic applications like transformers, inductors, and magnetic shielding.
The alloy features high electrical resistivity, which minimizes energy losses in magnetic circuits, and offers thermal stability across a broad temperature range, ensuring consistent performance in demanding environments. Its corrosion resistance is enhanced by the nickel content, contributing to longevity in various operating conditions.
Mechanical properties such as good ductility and machinability allow the wire to be manufactured in precise forms for specialized uses. NF32 is widely used in precision instruments, thermistors, magnetic cores, and electronic components where stable resistive and magnetic performance is critical. Combining reliability, durability, and versatility, NF32 PTC Ni-Fe Alloy Wire is a valuable material for industrial, electrical, and electronic applications.

Main Chemical Composition Wt.% NF32 PTC Ni-Fe Alloy%NiFe
Min50
Max55Bal.

Some key features of NF32 include:

1. Positive Temperature Coefficient (PTC):

Exhibits increased electrical resistivity with rising temperature, making it suitable for temperature control, sensing, and overcurrent protection.


2. Magnetic Properties:

High permeability and low coercivity, ideal for soft magnetic applications such as magnetic cores, transformers, and inductors.

3. High Electrical Resistivity:

Reduces energy losses in magnetic circuits, enhancing efficiency in electrical systems.


4. Thermal Stability:

Provides consistent performance across a wide temperature range, making it reliable for demanding environments.


5. Corrosion Resistance:

The nickel content ensures resistance to oxidation and corrosion, enhancing durability in harsh conditions.

6. Mechanical Properties:

Good ductility and machinability, enabling manufacturing in precise forms like wires, sheets, and other components.


7. Versatile Applications:

Used in thermistors, precision instruments, magnetic shielding, and electronic components where consistent magnetic and resistive properties are essential.


8. Durability:

Combines thermal, electrical, and magnetic stability with long-lasting performance in industrial, electrical, and electronic systems.


Applications:


  • Temperature Sensing and Control:

    • Used in thermistors and temperature-sensitive resistors to regulate and monitor temperature in heating elements, electronic circuits, and industrial equipment.
  • Overcurrent Protection Devices:

    • Serves as a current limiter in electronic circuits by increasing resistance at higher currents or temperatures, preventing damage to components.
  • Magnetic Cores:

    • Applied in transformers, inductors, and chokes due to its soft magnetic properties, ensuring efficient energy transfer and minimal losses.
  • Magnetic Shielding:

    • Provides shielding in electronic devices to prevent interference from external magnetic fields, improving device reliability.
  • Precision Instrumentation:

    • Integrated into high-accuracy sensors and control systems requiring stable magnetic and electrical properties over varying temperatures.
  • Electronic and Automotive Components:

    • Used in resistors, sensors, and other electronic parts in automotive systems for temperature and current regulation.
  • Industrial Heating Elements:

    • Applied in self-regulating heating elements, where its PTC property ensures stable and safe operation.
  • Consumer Electronics:

    • Included in circuit protection for household appliances, protecting circuits from overheating or overcurrent conditions.

NF32’s unique combination of resistive, thermal, and magnetic properties makes it versatile for diverse industries, including electronics, automotive, and industrial manufacturing.


Resistance Values and Naming Conventions for PTC Ni-Fe Alloy Wires


Alloy brand20℃ ResistivityThe tolerance range
NF130.13±0.02
NF150.15±0.02
NF200.20±0.02
NF230.23±0.02
NF250.25±0.02
NF320.32±0.02
NF360.36±0.02
NF380.38±0.02
NF400.40±0.02
NF430.43±0.02
NF460.46±0.02
NF520.52±0.02
NF600.60±0.02

Chemical Composition of Different Models of PTC Ni-Fe Alloy Wire


Alloy brandChemical element
Ni %Fe %
NF1385-95Rest
NF1575-85Rest
NF2070-75Rest
NF2360-65Rest
NF2560-65Rest
NF3250-55Rest
NF3650-55Rest
NF3850-55Rest
NF4050-55Rest
NF4345-50Rest
NF4645-50Rest
NF5245-50Rest
NF6045-50Rest

Temperature Coefficients of Different Models of PTC Ni-Fe Alloy Wire


Alloy brand120℃ Temperature coefficient PPMThe tolerance range PPM
NF134200±300
NF154400±300
NF204500±300
NF234800±300
NF254600±300
NF324200±300
NF363800±300
NF384000±300
NF403800±300
NF433400±300
NF463200±300
NF523000±300
NF602500±300

Mechanical properties (tensile strength)


CategoryDiameter range
mm
Elongation rate
≥ %
Cold drawn wire0.05 > d < 0.1≥ 18
0.1 > d < 0.3≥ 20
0.3 > d < 0.5≥ 20
0.5 > d < 1.0≥ 20

Size (diameter)


Alloy CodeDiameter mm
WireRodWire rod
NF130.05-8.012-308-14
NF150.05-8.012-308-14
NF200.05-8.012-308-14
NF230.05-8.012-308-14
NF250.05-8.012-308-14
NF320.05-8.012-308-14
NF360.05-8.012-308-14
NF380.05-8.012-308-14
NF400.05-8.012-308-14
NF430.05-8.012-308-14
NF460.05-8.012-308-14
NF520.05-8.012-308-14
NF600.05-8.012-308-14

Support and Services:

1. Technical Consultation

2. Product Selection

3. Time Guarantee

4. Warranty and After-Sales Support


Q&A:

1. Can this product be made into alloy wire?

Yes, each product model can be made in the diameter range of 0.05mm-30mm, can be customized.

2. Are your products safe and environmentally friendly?

Our products have passed the SGS test report, for the European Chemicals Agency and WTO concern SVHC content below the specified 0.1%, and passed the ISO9001 quality system certification.

3. What is the minimum quantity the customer can order?

If the stock of the required product is sufficient, we can provide a single copy as a sample, if the stock is insufficient, the minimum order quantity is 5kg.



China NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance supplier

NF32 PTC Ni-Fe Alloy Wire Rod with 50%-55% Nickel Content Stable Resistance

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