Long Lifespan And Consistent Performance CuNi19 NC025 With FEP Insulated Heating Wire For Automotive Applications
CuNi19 NC025 alloy insulated FEP heating wire is a high-performance heating element widely used in industrial and commercial applications. Made from CuNi19 (copper-nickel alloy), it offers excellent electrical resistivity, corrosion resistance, and thermal stability. The wire is insulated with FEP (fluorinated ethylene propylene), providing superior heat resistance, chemical resistance, and electrical insulation. This combination makes it ideal for heating systems, temperature sensors, and automotive applications. The wire's durability, flexibility, and consistent performance under high temperatures ensure long service life in demanding environments. CuNi19 NC025 heating wire is available in various diameters to meet diverse application requirements.

Bulletproof Silk (Optional)
Material | Temperature resistance | Melting Temperature | Applied for grade | Advantages |
High strength aramid | In a 100 to 300 ℃ long-term use will not have obvious change and impairment | Melting Temperature is in 1135 ℃ | Applied for more than 110N | 1. Good mechanical 2. Heat resistant and flame retardant 3. The stable chemical properties 4. Radiation resistanc 5. Durability |
Alloy Material
Texture | Ni-Cu (Can be enameled) |
Resistance | According to the requests |
Wire diameter | 0.018~1.5mm |
Characteristic | 1. High strength
2. Strong hardness
3. Anti-corrosion
4.Thermoelectricity good |
Operating principle | Heating filament dogan twisted |
Paint Cladding(Optional)
Texture | Polyurethane | Polyetherimide |
Temperature class | -50~150℃ | -160~180℃ |
Characteristic | 1. Performance wide adjustable range well-adapted
2. Adhesive performance is good
3. Good elasticity, good resilien, can be used for dynamic joint
4. Good flexibility at low temperatures
5. Good weather resistance,service life up to 15~20 years
6. Good oil resistance
7. Biological aging resistance
8. Moderate cost | 1. Excellent Mechanical Properties
2. Good electrical insulatingperformance
3. Excellent radiation resistance
4. Excellent resistanceto high and low temperature performance
5. Excellent wear resistance
6. Excellent microwave through performance
7. Strong plastcity |
Outer Sheath (Optional)
Texture | PA12 | TPEE | PVC | FEP |
Plastic outer diameter | 0.8mm~1.0mm |
Temperature class | -40~140C | -70~200℃ | -30~125℃ | -100~220℃ |
Dielectric strength | 39Kv/mm | 36Kv/mm | 36Kv/mm | 42Ky/mm |
Dielectric constant | 1.9×10^7 HZ | 1.4×10^7 HZ | 1.4×10^7 HZ | 2.8×10 HZ |
Breaking strength | 19~25MPa | 18~24MPa | 18~24MPa | 15~22MPa |
Key Features of CuNi19 NC025 Alloy Material Insulated FEP Heating Wire
The CuNi19 (NC025) alloy material insulated with FEP (Fluorinated Ethylene Propylene) heating wire is commonly used in industrial and commercial heating applications. Below are its key features:
1. Material Composition
- Conductor Material: CuNi19 (Copper-Nickel alloy, typically 19% Nickel and 81% Copper)
- Alloy Type: NC025
- Resistivity: Approximately 0.25 Ω mm²/m
- High electrical resistivity, making it suitable for heating applications.
2. Insulation
- Material: FEP (Fluorinated Ethylene Propylene)
- Temperature Resistance: Up to 200°C continuously
- Excellent chemical resistance to oils, acids, and solvents.
- High dielectric strength and low friction surface.
3. Thermal Properties
- Stable heating performance across a wide temperature range.
- Excellent heat resistance and consistent power output.
- Oxidation-resistant and corrosion-resistant under high temperatures.
4. Electrical Properties
- High resistivity with precise control of resistance.
- Low temperature coefficient of resistance.
- Reliable long-term performance for heating systems.
5. Mechanical Properties
- Flexible structure, allowing easy installation.
- High mechanical strength and durability.
- Resistant to cracking, moisture, and abrasion.
6. Advantages
- High chemical resistance
- Consistent heating performance
- Long service life
- Flexible and easy to install
- High temperature endurance
Applications
1. Industrial Heating Systems
- Used in electric heating elements for industrial equipment.
- Suitable for pipe trace heating systems to prevent freezing or maintain fluid viscosity.
- Employed in heating mats or heating cables for large surface heating.
2. Automotive Industry
- Heated seats or defrosting systems.
- Battery warming systems in electric vehicles.
- Mirror defoggers and windshield heating elements.
3. Medical Equipment
- Laboratory heating devices.
- Temperature-controlled medical instruments.
- Heated fluid lines in diagnostic equipment.
4. Consumer Electronics
- Defrosting wires in refrigerators and freezers.
- Heated blankets or heating pads.
- Small appliance heating components (coffee makers, kettles).
5. Aerospace Industry
- Anti-icing systems in aircraft wings and engines.
- Heated lines for fluid transfer systems.
6. Chemical Processing Industry
- Heating cables for corrosion-resistant pipelines.
- Fluid viscosity maintenance systems in chemical plants.
7. Oil & Gas Industry
- Pipeline heating to prevent wax formation.
- Electrical heating systems in offshore rigs.
Why CuNi19/ NC025?
- High electrical resistivity.
- Excellent corrosion resistance, especially in moist or chemical environments.
- Stable resistance over a wide temperature range.
- Flexibility and durability, especially when insulated with FEP (Fluorinated Ethylene Propylene), which provides high thermal and chemical resistance.


