NF60 PTC Ni-Fe Alloy Wire for Precise Regulation and Stable Thermal Response in Temperature-Sensitive Applications

Brand Name:Senphus
Certification:SGS, ISO9001
Model Number:NF60
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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NF60 PTC Ni-Fe Alloy Wire for Precise Regulation and Stable Thermal Response in Temperature-Sensitive Applications, Resistance 0.6


NF60 PTC Ni-Fe Alloy (Ni 45%-50%, Resistance: 0.6 Ω·mm²/m) is a nickel-iron alloy engineered for applications requiring precise thermal and resistive properties. Its Positive Temperature Coefficient (PTC) behavior ensures that resistivity increases with temperature, making it ideal for temperature-sensitive, overcurrent protection, and self-regulating heating systems.


With a resistivity of 0.6 Ω·mm²/m, the alloy is well-suited for moderate-resistance applications. Its high magnetic permeability and low coercivity make it effective in soft magnetic applications, including transformers, inductors, and magnetic shielding. Additionally, its thermal stability and good corrosion resistance ensure consistent performance and durability in demanding environments.


NF60 offers excellent ductility and machinability, allowing for easy fabrication into wires, strips, and other components. It is widely utilized in industrial heating systems, electronic sensors, magnetic components, and automotive applications.


This alloy provides a robust combination of thermal reliability, precise resistive characteristics, and magnetic efficiency, making it an ideal choice for industrial, automotive, and consumer electronic systems requiring stable performance under varying conditions.

Main Chemical Composition Wt.% NF60 PTC Ni-Fe Alloy%NiFe
Min45
Max50Bal.

Key features of PTC Ni-Fe alloy NF60 include:

  1. Positive Temperature Coefficient (PTC):

    • Exhibits increasing resistivity with rising temperature, enabling its use in temperature sensing, overcurrent protection, and self-regulating heating systems.
  2. Moderate Electrical Resistivity:

    • A resistivity of 0.6 Ω·mm²/m makes it suitable for applications requiring moderate resistance with reliable performance.
  3. Magnetic Properties:

    • High magnetic permeability and low coercivity ensure efficient performance in soft magnetic applications like transformers, inductors, and magnetic shielding.
  4. Thermal Stability:

    • Maintains stable electrical and magnetic properties over a broad temperature range, ensuring dependable operation in dynamic environments.
  5. Corrosion Resistance:

    • The nickel content enhances resistance to oxidation and corrosion, ensuring durability and reliability in harsh or humid conditions.
  6. Mechanical Versatility:

    • Excellent ductility and machinability allow easy fabrication into wires, strips, and other forms for diverse industrial applications.
  7. Wide Application Range:

    • Suitable for industrial heating systems, magnetic components, temperature-sensitive devices, and circuit protection systems.
  8. Balanced Nickel Content (45%-50%):

    • Provides an optimal balance between magnetic performance and resistive properties, making it versatile across different industries.
  9. Durable and Reliable:

    • Combines thermal reliability, corrosion resistance, and magnetic efficiency for long-term, dependable performance in critical applications.

NF60’s combination of precise resistivity, thermal stability, and magnetic efficiency makes it a preferred material for industrial, automotive, and electronic applications.

Applications:

  1. Temperature Sensing and Regulation:

    • Used in thermistors and temperature-sensitive resistors for precise temperature monitoring and control in industrial and consumer devices.
  2. Overcurrent Protection:

    • Functions as a current limiter in circuits, increasing resistance at higher temperatures to safeguard sensitive electronics from overcurrent damage.
  3. Self-Regulating Heating Elements:

    • Ideal for industrial and domestic heating systems where efficient and controlled heating is required, such as in heating pads, appliances, or de-icing systems.
  4. Magnetic Components:

    • Utilized in transformers, inductors, and chokes due to its high magnetic permeability and low energy losses in soft magnetic applications.
  5. Magnetic Shielding:

    • Provides shielding from magnetic interference for precision instruments, medical devices, and communication equipment.
  6. Industrial Heating Systems:

    • Employed in resistive heating components for furnaces, process equipment, and heat exchangers requiring thermal efficiency and stability.
  7. Automotive Applications:

    • Used in sensors, protection devices, and heating elements for automotive systems, ensuring reliable performance under varying temperature and environmental conditions.
  8. Consumer Electronics:

    • Found in safety devices, heating elements, and circuit protection components for appliances and electronic products.
  9. Renewable Energy Systems:

    • Supports power electronics in renewable energy systems, such as inverters and converters, by ensuring thermal and magnetic stability.
  10. Aerospace and Defense:

    • Applied in high-performance systems requiring thermal reliability, magnetic efficiency, and resistance to extreme operating conditions.
  11. Precision Instrumentation:

    • Suitable for sensing and control devices that demand consistent magnetic and resistive properties over a wide temperature range.

NF60's combination of PTC behavior, precise resistive characteristics, and magnetic efficiency makes it a versatile material for industrial, automotive, and electronic applications requiring reliability, stability, and efficiency.


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. Where can this product be applied?

This product can be used for overload protection. Due to the characteristics of the PTC thermistor, the resistance increases when the device is initially started or when the voltage abnormally increases, thereby protecting downstream devices.


2. How can I pay?

For initial collaborations, we accept T/T and D/P payment methods. However, payment methods may change depending on order volume and years of cooperation.


3. What is the minimum order quantity?

If the product is in stock, we can provide a single unit as a sample. If the product is not in stock, the minimum order quantity is 5kg.


4. How do you guarantee product quality?

We employ advanced manufacturing processes, with three quality inspections during production. We adhere to high-quality standards, consistent with Swedish KANTHAL, and have achieved ISO9001 certification.


5. What are your prices?

We welcome inquiries from our customers. The price of all products is determined by the purchase volume. Based on our market position in China, robust production capacity, and strict standards, our prices are generally lower for the same specifications and quantities.


China NF60 PTC Ni-Fe Alloy Wire for Precise Regulation and Stable Thermal Response in Temperature-Sensitive Applications supplier

NF60 PTC Ni-Fe Alloy Wire for Precise Regulation and Stable Thermal Response in Temperature-Sensitive Applications

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