Product Description

CuNi44 Foil (0.0125mm Thickness × 102mm Width)

Product Overview

Standard Designations

• Alloy Grade: CuNi44 (Copper-Nickel 44)
• UNS Number: C71500
• International Standards: Complies with DIN 17664, ASTM B122, and GB/T 2059
• Dimensional Specification: 0.0125mm thickness × 102mm width
• Manufacturer: Huona New Material, certified to ISO 9001 for precision alloy processing

Key Advantages (vs. Standard CuNi44 Foils)

• Ultra-Thin Precision: 0.0125mm thickness (equivalent to 12.5μm) achieves industry-leading thinness, enabling miniaturization of electronic componentswithout sacrificing mechanical strength.
• Stable Resistance Performance: Resistivity of 49 ± 2 μΩ·cm at 20°C and low temperature coefficient of resistance (TCR: ±40 ppm/°C, -50°C to 150°C)—ensures minimal resistance drift in high-precision measurement scenarios, outperforming thinner non-alloy foils.
• Strict Dimensional Control: Thickness tolerance of ±0.0005mm and width tolerance of ±0.1mm (102mm fixed width) eliminate material waste in automated production lines, reducing post-processing costs for customers.
• Excellent Formability: High ductility (elongation ≥25% in annealed state) allows for complex micro-stamping and etching (e.g., fine resistor grids) without cracking—critical for precision electronic manufacturing.
• Corrosion Resistance: Passes 500-hour ASTM B117 salt spray testing with minimal oxidation, ensuring long-term reliability in humid or mild chemical environments.

Technical Specifications

Product Specifications

Typical Applications

• Micro-Electronics: Thin-film resistors, current shunts, and potentiometer elements in wearable devices, smartphones, and IoT sensors (0.0125mm thickness enables compact PCB design).
• Strain Gauges: High-precision strain gauge grids (102mm width fits standard gauge manufacturing panels) for load cells and structural stress monitoring.
• Medical Devices: Miniature heating elements and sensor components in implantable devices and portable diagnostic tools (corrosion resistance ensures biocompatibility with body fluids).
• Aerospace Instrumentation: Precision resistance components in avionics (stable performance under temperature fluctuations at high altitudes).
• Flexible Electronics: Conductive layers in flexible PCBs and foldable displays (ductility supports repeated bending).

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.