Product Description

CuNi44 Foil

Product Overview

Standard Designations

• Alloy Grade: CuNi44 (Copper-Nickel 44)
• UNS Number: C71500
• DIN Standard: DIN 17664
• ASTM Standard: ASTM B122

Key Features

• Stable Electrical Resistance: Low temperature coefficient of resistance (TCR) of ±40 ppm/°C (typical) over -50°C to 150°C, ensuring minimal resistance drift in temperature-fluctuating environments.
• High Resistivity: 49 ± 2 μΩ·cm at 20°C, suitable for high-precision resistance components.
• Excellent Formability: High ductility allows for cold rolling to ultra-thin gauges (down to 0.005mm) and complex stamping without cracking.
• Corrosion Resistance: Resistant to atmospheric corrosion, freshwater, and mild chemical environments (complies with ISO 9227 salt spray test for 500 hours with minimal oxidation).
• Thermal Stability: Maintains mechanical and electrical properties up to 300°C (continuous use).

Technical Specifications

Chemical Composition (Typical, %)

Product Specifications

Typical Applications

• Electrical Components: Precision resistors, current shunts, and potentiometer elements.
• Sensors: Strain gauges, temperature sensors, and pressure transducers.
• Thermocouples: Compensation wires for Type T thermocouples.
• Shielding: EMI/RFI shielding in high-frequency electronic devices.
• Heating Elements: Low-power heating foils for medical and aerospace equipment.

Huona (Shanghai) New Material Co., Ltd. Was established in 2008, currently have three divisions: Magnesium Division, Thermal Spray Division and Functional Material Division.

Magnesium Division produces magnesium metal products. Various models of high-quality magnesium alloy plate, magnesium rods, high-purity magnesium, magnesium plate, magnesium die casting, magnesium extrusion profiles and other metal magnesium and deep processing products.

Thermal spray wire Division offers a wide variety of pure metal and metal alloy wires, including nickel-, iron-, aluminum-, and zinc-based wires for thermal spray projects.

Fuctional Material Division supply electronic packaging COMPONENTS(GTMS, CTMS), soft magnetic alloys and bimetal strip.

Our company is certified by ISO9001 quality system and ISO14001 environmental protection system.

Mission Statement

We try our best to understand and utilize information within the environment. With this competency, we assist customers to create added value and contribute to the development of industry and healthy living.

We strive for "Best, " welcome challenges, and are relentless till we deliver products and solutions.