Description
Product Details of Atomfair Copper-Nickel (White Copper) Foil
1. Basic Product Information
1.1 Product Overview
Copper-nickel alloy, commonly known as “white copper” for its silvery-white surface, is a high-resistivity alloy. It features a low temperature coefficient of resistivity (up to 0.48??) and stable performance across a wide temperature range. With excellent processability, weldability, and outstanding corrosion resistance, it is well-suited for extremely harsh working environments.
1.2 Alloy Composition (Compliant with ASTM Standards)
| Alloy Grade (ASTM) | Nickel + Cobalt (Ni+Co) (%) | Manganese (Mn) (%) | Copper (Cu) (%) | Iron (Fe) (%) | Zinc (Zn) (%) |
|---|---|---|---|---|---|
| C75200 | 16.5-19.5 | 0.5 | 63.5-66.5 | 0.25 | Remainder |
| C77000 (Equiv. to BZn 18-26) | 16.5-19.5 | 0.5 | 53.5-56.5 | 0.25 | Remainder |
| C70600 (Equiv. to BMn 40-1.5) | 39.0-41.0 | 1.0-2.0 | Balance | 0.5 | ?/td> |
1.3 Dimensional Specifications
| Product Type | Thickness Range | Width Range | Thickness Tolerance | Width Tolerance |
|---|---|---|---|---|
| Coil | 0.01-0.15 mm | 4.0-250 mm | = ±0.003 mm | = 0.1 mm |
2. Product Applications
Leveraging its excellent electrical and physical properties, Atomfair Copper-Nickel Foil is widely used in the following fields:
2.1 Electronic Circuit Field
Suitable for AC circuits, it serves as the core material for precision resistors and sliding rheostats, ensuring stable and accurate circuit resistance. It is also an ideal material for resistance strain gauges, which can accurately sense external force changes and convert them into resistance change signals.
2.2 Temperature Measurement Field
Processed into thermocouples and thermocouple compensating wires, its stable temperature-resistance characteristics enable precise measurement and signal transmission across different temperature ranges. It is applicable to various temperature monitoring scenarios such as industrial production and scientific research experiments.
2.3 Harsh Environment Applications
With excellent corrosion resistance, it is applied in marine engineering, chemical equipment, and electronic components under extreme climatic conditions, ensuring long-term stable operation of products in harsh environments.
2.4 Customized Processing Field
To meet specific needs of customers in different industries, we provide customized thickness and width. It is suitable for manufacturing various precision components such as microelectronic components and precision instrument accessories, effectively improving production efficiency and reducing material waste costs.
Note: All performance parameters are tested under standard conditions (20?, 1 atm). For alloy grade selection guidance or customized specification quotes, please contact our technical team.
If you?e interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
