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NF23 PTC Ni-Fe Alloy Ferronickel Wire Resistivity 0.23 for Advanced Thermal Management and Safety Applications
NF23 PTC Ni-Fe Alloy (Ni 60%-65%) is a nickel-iron alloy designed for applications requiring precise temperature regulation, magnetic efficiency, and thermal stability. Its Positive Temperature Coefficient (PTC) ensures resistivity increases with temperature, making it suitable for temperature sensing, overcurrent protection, and self-regulating heating systems.
The alloy offers high magnetic permeability and low coercivity, making it ideal for soft magnetic applications like transformers, inductors, and magnetic shielding. Its thermal stability ensures consistent performance across a broad temperature range, while its moderate nickel content provides good corrosion resistance for durability in various environments.
NF23 is mechanically versatile, featuring good ductility and machinability, allowing it to be fabricated into wires, strips, and other components. It is commonly used in industrial heating systems, precision sensors, magnetic components, and automotive and electronic applications.
With a balance of magnetic, thermal, and resistive properties, NF23 is a reliable and cost-effective material for industrial, automotive, and consumer electronics systems requiring stable performance under varying operating conditions.
Main Chemical Composition Wt.% NF23 PTC Ni-Fe Alloy | % | Ni | Fe |
Min | 60 | ||
Max | 65 | Bal. |
Key features of the PTC Ni-Fe alloy NF23 include:
Positive Temperature Coefficient (PTC):
Magnetic Properties:
Moderate Nickel Content:
Thermal Stability:
High Electrical Resistivity:
Mechanical Versatility:
Wide Application Range:
Cost-Effective Performance:
NF23’s balance of thermal stability, magnetic efficiency, and PTC behavior makes it an excellent choice for precision and high-performance applications in various industries.
Applications:
Temperature Sensing and Control:
Overcurrent Protection:
Magnetic Cores:
Magnetic Shielding:
Industrial Heating Systems:
Automotive Electronics:
Consumer Electronics:
Renewable Energy Systems:
Precision Instrumentation:
Aerospace and Defense Applications:
NF23's combination of PTC behavior, magnetic efficiency, and thermal stability makes it a versatile material for 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:
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.