NF36 PTC Ni-Fe Alloy Wire Enhanced Safety And Efficiency
NF36 PTC Ni-Fe Alloy Wire for Enhanced Safety and Efficiency in Temperature Control Resistance 0.36
NF36 PTC Ni-Fe Alloy (Ni 50%-55%) is a nickel-iron alloy known for its Positive Temperature Coefficient (PTC) behavior, where electrical resistivity increases with rising temperature. This property makes it suitable for temperature sensing, current limiting, and self-regulating heating applications.
The alloy features high magnetic permeability and low coercivity, making it ideal for soft magnetic applications such as transformers, inductors, and magnetic shielding. Its thermal stability ensures reliable performance across wide temperature ranges, while its balanced nickel content provides good corrosion resistance for long-lasting durability.
NF36 is mechanically versatile, offering excellent ductility and machinability for easy fabrication into wires, strips, and other components. It is widely used in industrial heating systems, magnetic cores, overcurrent protection devices, and temperature-sensitive resistors.
With its combination of thermal stability, magnetic efficiency, and corrosion resistance, NF36 is a dependable material for industrial, automotive, and electronic applications requiring precision, durability, and reliable performance under varying environmental conditions.
| Main Chemical Composition Wt.% NF36 PTC Ni-Fe Alloy | % | Ni | Fe |
| Min | 50 | ||
| Max | 55 | Bal. |
Some key features of NF36 include:
Applications:
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Temperature Sensing and Control:
- Used in thermistors and temperature-sensitive resistors for precise temperature regulation in industrial and electronic systems.
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Overcurrent Protection:
- Functions as a current limiter in circuits, increasing resistance at higher temperatures to protect electronic components from overcurrent damage.
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Magnetic Cores:
- Ideal for transformers, inductors, and chokes due to its high magnetic permeability and low energy loss in soft magnetic applications.
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Magnetic Shielding:
- Provides protection against external magnetic interference in sensitive electronic devices, communication equipment, and precision instruments.
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Industrial Heating Systems:
- Incorporated into self-regulating heating elements for energy-efficient temperature control in industrial and household heating applications.
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Automotive Electronics:
- Used in resistors, sensors, and protection devices to ensure reliable operation under varying thermal and environmental conditions.
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Consumer Electronics:
- Found in heating components and circuit protection systems for appliances and electronic devices requiring safety and durability.
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Power and Renewable Energy Systems:
- Used in magnetic and resistive components for inverters, converters, and other power electronics to ensure stability and thermal reliability.
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Precision Instrumentation:
- Applied in high-accuracy sensing and control devices, where stable magnetic and resistive properties are critical over a broad temperature range.
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Aerospace and Defense Applications:
- Suitable for high-performance systems requiring thermal stability, magnetic efficiency, and durability under extreme conditions.
NF36's combination of PTC behavior, magnetic efficiency, and thermal stability makes it an excellent choice for diverse applications in industrial, automotive, and electronic fields.
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:
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2. Product Selection
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4. Warranty and After-Sales Support
Q&A:
1. What is the minimum order quantity?
The MOQ is 5kg, but if you need samples, please contact us.
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.
2. How to choose products with different diameters and resistivity
We have product experts who are familiar with the use of the scenario to help determine the product, you can send email or contact us via chat software.
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