30 Mm NF52 PTC Ni-Fe Alloy Wire For Household Electric Product
NF52 PTC Ni-Fe Alloy Wire Ongoing Research to Enhance Magnetic Properties and Expand Technological Applications Resistivity 0.52
| Main Chemical Composition Wt.% NF52 PTC Ni-Fe Alloy | % | Ni | Fe |
| Min | 45 | ||
| Max | 50 | Bal. |
Key Features of PTC Ni-Fe Alloy NF52 Include:
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Positive Temperature Coefficient (PTC):
- Exhibits an increase in electrical resistivity with rising temperature, making it suitable for temperature sensing, control, and overcurrent protection.
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Magnetic Properties:
- High magnetic permeability and low coercivity enable efficient performance in soft magnetic applications such as transformers, inductors, and chokes.
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High Electrical Resistivity:
- Reduces energy losses in magnetic circuits, enhancing efficiency and reliability in electronic and industrial systems.
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Thermal Stability:
- Performs consistently across a wide temperature range, ensuring stable electrical and magnetic properties under varying conditions.
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Corrosion Resistance:
- Nickel content enhances resistance to oxidation and corrosion, providing durability in harsh or high-temperature environments.
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Mechanical Versatility:
- Good ductility and machinability allow it to be processed into wires, strips, or custom shapes for diverse applications.
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Wide Application Range:
- Used in temperature-sensitive components, magnetic shielding, heating elements, and precision electronic devices.
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Durability and Reliability:
- Combines thermal, magnetic, and resistive stability with long-lasting performance for demanding industrial, automotive, and electronic applications.
NF52’s balanced properties make it ideal for applications requiring reliable temperature-dependent resistive behavior and strong magnetic performance.
Applications:
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Temperature Sensing and Control:
- Used in thermistors and temperature-sensitive resistors for monitoring and regulating temperature in industrial equipment and electronic devices.
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Overcurrent Protection:
- Acts as a current limiter, increasing resistance with rising temperature to protect circuits from overcurrent conditions.
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Magnetic Cores:
- Ideal for transformers, inductors, and chokes due to its high magnetic permeability and low coercivity, ensuring efficient energy transfer.
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Magnetic Shielding:
- Provides protection against magnetic interference in sensitive electronic and precision devices.
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Industrial Heating Systems:
- Integrated into self-regulating heating elements for controlled heating and energy efficiency in industrial and domestic applications.
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Automotive Electronics:
- Used in resistors, sensors, and circuit protection devices to ensure reliable operation in temperature-varying environments.
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Consumer Electronics:
- Found in household appliances for circuit protection and temperature regulation to prevent overheating or electrical faults.
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Precision Instrumentation:
- Applied in sensors and devices requiring stable resistive and magnetic properties across a wide temperature range.
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Power Electronics and Renewable Energy:
- Utilized in systems like inverters and converters to stabilize magnetic components and provide reliable performance.
NF52’s thermal stability, magnetic efficiency, and corrosion resistance make it a versatile alloy for industrial, automotive, and electronic applications requiring precision and durability.
Resistance Values and Naming Conventions for PTC Ni-Fe Alloy Wires
| Alloy brand | 20℃ Resistivity | The tolerance range | ||||
| NF13 | 0.13 | ±0.02 | ||||
| NF15 | 0.15 | ±0.02 | ||||
| NF20 | 0.20 | ±0.02 | ||||
| NF23 | 0.23 | ±0.02 | ||||
| NF25 | 0.25 | ±0.02 | ||||
| NF32 | 0.32 | ±0.02 | ||||
| NF36 | 0.36 | ±0.02 | ||||
| NF38 | 0.38 | ±0.02 | ||||
| NF40 | 0.40 | ±0.02 | ||||
| NF43 | 0.43 | ±0.02 | ||||
| NF46 | 0.46 | ±0.02 | ||||
| NF52 | 0.52 | ±0.02 | ||||
| NF60 | 0.60 | ±0.02 | ||||
Chemical Composition of Different Models of PTC Ni-Fe Alloy Wire
| Alloy brand | Chemical element | ||||
| Ni % | Fe % | ||||
| NF13 | 85-95 | Rest | |||
| NF15 | 75-85 | Rest | |||
| NF20 | 70-75 | Rest | |||
| NF23 | 60-65 | Rest | |||
| NF25 | 60-65 | Rest | |||
| NF32 | 50-55 | Rest | |||
| NF36 | 50-55 | Rest | |||
| NF38 | 50-55 | Rest | |||
| NF40 | 50-55 | Rest | |||
| NF43 | 45-50 | Rest | |||
| NF46 | 45-50 | Rest | |||
| NF52 | 45-50 | Rest | |||
| NF60 | 45-50 | Rest | |||
Temperature Coefficients of Different Models of PTC Ni-Fe Alloy Wire
| Alloy brand | 120℃ Temperature coefficient PPM | The tolerance range PPM | ||||||||||||
| NF13 | 4200 | ±300 | ||||||||||||
| NF15 | 4400 | ±300 | ||||||||||||
| NF20 | 4500 | ±300 | ||||||||||||
| NF23 | 4800 | ±300 | ||||||||||||
| NF25 | 4600 | ±300 | ||||||||||||
| NF32 | 4200 | ±300 | ||||||||||||
| NF36 | 3800 | ±300 | ||||||||||||
| NF38 | 4000 | ±300 | ||||||||||||
| NF40 | 3800 | ±300 | ||||||||||||
| NF43 | 3400 | ±300 | ||||||||||||
| NF46 | 3200 | ±300 | ||||||||||||
| NF52 | 3000 | ±300 | ||||||||||||
| NF60 | 2500 | ±300 | ||||||||||||
Mechanical properties (tensile strength)
| Category | Diameter range mm |
Elongation rate ≥ % |
|
| Cold drawn wire | 0.05 > 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 Code | Diameter mm | |||||
| Wire | Rod | Wire rod | ||||
| NF13 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF15 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF20 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF23 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF25 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF32 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF36 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF38 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF40 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF43 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF46 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF52 | 0.05-8.0 | 12-30 | 8-14 | |||
| NF60 | 0.05-8.0 | 12-30 | 8-14 | |||
Support and Services:
1. Technical Consultation
2. Product Selection
3. Time Guarantee
4. Warranty and After-Sales Support
Q&A:
1. Where can the product be used?
The material is widely used in various electric heaters, such as car seat heating, snow melting heating, electric floor heating and so on.
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.
4. How do you guarantee the quality of your products?
Using advanced preparation technology, 3 times sampling testing in the production process, high quality testing standards, consistent with Sweden KANTHAL, and passed ISO9001 certification.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

