NF25 PTC Ni-Fe Alloy Wire Valued in Automotive and Aerospace Electronics for Consistent Performance, Resistance 0.25
PTC (Positive Temperature Coefficient) Ni-Fe Alloy Ni60-65 is a nickel-iron alloy known for its distinctive property of increasing electrical resistance with temperature. This behavior makes it ideal for applications requiring temperature-sensitive electrical or thermal controls. The alloy contains 60–65% nickel, with the remainder primarily iron, and is engineered to provide high stability and predictable resistance characteristics.
Ni60-65 exhibits excellent corrosion resistance and mechanical durability, making it suitable for harsh environments. Its positive temperature coefficient allows for self-regulating heating applications, ensuring safety and energy efficiency in devices such as heating elements, circuit breakers, and temperature sensors. The material also sees usage in magnetic shielding due to its favorable permeability and low coercivity.
This alloy performs well over a broad temperature range and is easy to fabricate into various shapes, including wires and strips. Its consistent electrical performance, combined with environmental robustness, makes it a valuable material in industrial, automotive, and consumer electronics sectors, contributing to energy-efficient and reliable system designs.
| Main Chemical Composition Wt.% NF25 PTC Ni-Fe Alloy |
% |
Ni |
Fe |
| Min |
60 |
|
| Max |
65 |
Bal. |
Key features of the PTC Ni-Fe alloy NF25 include:
- Positive Temperature Coefficient (PTC):
Resistance increases predictably with rising temperature, enabling self-regulating heating and temperature control applications.
- Composition:
Comprises 60–65% nickel, with the remainder primarily iron, providing balanced electrical and thermal properties.
- Corrosion Resistance:
Exhibits excellent resistance to oxidation and corrosion, ensuring durability in harsh environments.
- Thermal Stability:
Performs reliably over a wide temperature range without significant degradation in properties.
- Electrical Properties:
Offers high and consistent resistivity, crucial for precision in temperature-sensitive applications.
- Magnetic Characteristics:
Low coercivity and favorable permeability make it suitable for magnetic shielding.
- Mechanical Durability:
Robust and resistant to mechanical wear, ideal for demanding industrial and automotive applications.
- Fabrication Flexibility:
Easily processed into various forms, such as wires, strips, or plates, for diverse applications.
- Energy Efficiency:
Self-regulating properties reduce energy consumption and enhance safety in electrical devices
Applications:
This alloy's unique combination of thermal, electrical, and mechanical properties enables its use in a wide range of industries, ensuring reliability and energy efficiency.
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. Can you provide free samples?
If the samples you need happen to be in stock, we can provide samples free of charge.
2. If we use custom products, will the price be higher?
Usually our prices are higher for special products, because it is related to production efficiency, but all prices depend on the quantity of the order.
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.
|
|
NF25 PTC Ni-Fe Alloy Wire Valued in Automotive and Aerospace Electronics for Consistent Performance Images
|
