NF46 PTC Ni-Fe Alloy Wire with Chemical Composition and Diameter Inspection for

Product Specification

NF46 PTC Ni-Fe Alloy Wire with Chemical Composition and Diameter Inspection for Stable Performance, Resistance0.46

The product exhibits a resistivity of 0.46 at a temperature of 20°C, with a tolerance range of ±0.02.

PTC Ni-Fe alloy NF46 is valued for its unique combination of magnetic properties and thermal characteristics. This alloy exhibits a very low coercive field, making it ideal for high precision torque sensors. Its magnetic properties can be adjusted by adding elements like copper or chromium, effectively reducing the remanence and the coercive field. NF46 also features a tuned Curie point and Hopkinson peak, which are advantageous for non-contact temperature sensing technology.

The alloy's great plasticity and soft magnetic behavior when austenitic make it suitable for a range of applications, including transformers, synchro-resolvers, and miniaturized motors. Its low Curie point (20 < Tc < 450 °C) is particularly useful in various temperature-sensitive applications. NF46 offers medium saturation polarization at room temperature, contributing to its use in low-frequency inductors and current sensors.

Furthermore, NF46's corrosion resistance and workability allow for the creation of complex shapes and structures, expanding its application range to include gas safety actuators and components for additive manufacturing. Ongoing research continues to enhance the magnetic properties of NF46, promising new potential in technological advancements.

Some Key Features of NF46 Include:

1. Low Coercive Field: This alloy can achieve a very low coercive field, which is beneficial for applications such as high precision torque sensors.
2. Magnetic Property Tunability: The addition of elements like copper, chromium, or titanium can effectively reduce the remanence and the coercive field.
3. Tuned Curie Point and Hopkinson Peak: The alloy has a tuned Curie point and Hopkinson peak, which are advantageous for new non-contact temperature sensing technology.
4. Great Plasticity and Soft Magnetic Behavior: When austenitic, these face-centered cubic (fcc) Fe-Ni materials exhibit great plasticity and very soft magnetic material (SMM) behavior with respect to magnetic anisotropy energies.
5. Low Curie Point: Industrial austenitic FeNi(Cr,Mo,etc) alloys, are characterized by a low Curie point (20 < Tc < 450 °C).
6. Saturation Polarization: NF46 has a saturation polarization of medium amplitude at room temperature, which is a significant property for magnetic applications.
7. Shape Memory Effect: Ni-Fe alloys, in general, are known for their shape memory effect, which is crucial for applications requiring materials that can return to their original shape after deformation.
8. Corrosion Resistance: Ni-Fe alloys typically offer good corrosion resistance, making them suitable for use in harsh environments.
9. High Workability: These alloys are often easy to work with, allowing for the creation of complex shapes and structures through processes like high energy ball milling.

These features make NF46 alloys suitable for a range of applications, from precision sensors and actuators to components in devices that require specific magnetic properties.

Applications:

• Precision Instruments: Due to its low thermal expansion and high dimensional stability, NF46 is used in precision instruments where accuracy is paramount.
• Transformer Components: The alloy is employed in the manufacturing of transformer components, benefiting from its soft magnetic properties.
• Electromechanical Actuators: NF46 is used in the production of electromechanical actuators, where its magnetic properties contribute to the efficiency and safety of the devices.
• Synchro-Resolvers and Miniaturized Motors: The alloy's magnetic characteristics make it suitable for use in synchro-resolvers and miniaturized motors.
• High-Sensitivity Relays: NF46's magnetic properties are utilized in stamped parts for high-sensitivity relays.
• Low-Frequency Inductors: The alloy is used in low-frequency inductors, where its magnetic properties are advantageous.
• Current Sensors: NF46 is used in cores for open-loop current sensors, benefiting from its magnetic properties.
• Temperature-Controlled Applications: The alloy's tuned Curie point makes it suitable for temperature-controlled induction heating and other applications requiring precise temperature regulation.
• Additive Manufacturing: NF46's properties make it a candidate for additive manufacturing processes, particularly for creating actuator parts.
• Aerospace Applications: Ni-Fe alloys are often the first choice for aerospace applications requiring high strength and low thermal expansion, such as structural components in optical payloads and accelerometers in spacecraft systems.
• Thermal Management: The alloy's thermal properties make it useful in thermal management applications, especially in environments with extreme temperature variations.

These applications highlight the versatility of the PTC Ni-Fe alloy NF46, which is valued for its magnetic properties, low thermal expansion, and high dimensional stability.

Resistance Values and Naming Conventions for PTC Ni-Fe Alloy Wires

Chemical Composition of Different Models of PTC Ni-Fe Alloy Wire

Temperature Coefficients of Different Models of PTC Ni-Fe Alloy Wire

Mechanical properties (tensile strength)

Size (diameter)

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.