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CuNi44 NC050 Foil High-Performance Nickel-Copper Alloy for Electrical & Industrial Use
Contact me for free samples and coupons.
WhatsAPP:0086 18588475571
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If you have any concern, we provide 24-hour online help.
x| Thickness Range | 0.005mm - 0.1mm (custom Up To 0.5mm) | Width Range | 10mm - 600mm |
|---|---|---|---|
| Thickness Tolerance | ±0.0005mm (for ≤0.01mm); ±0.001mm (for >0.01mm) | Width Tolerance | ±0.1mm |
| Tensile Strength | 450 - 550 MPa (annealed State) | Elongation | ≥25% (annealed State) |
| Hardness (HV) | 120 - 160 (annealed); 200 - 250 (half-hard) | Surface Roughness (Ra) | ≤0.1μm (polished Finish) |
| Highlight | CuNi44 nickel-copper alloy foil,high-performance copper nickel foil,electrical industrial CuNi44 alloy |
||
CuNi44 foil is a high-performance copper-nickel alloy foil with a nominal nickel content of 44%, offering exceptional electrical resistance stability, corrosion resistance, and formability. This precision-engineered foil is produced through advanced rolling processes to achieve tight dimensional tolerances, making it ideal for applications requiring consistent electrical properties and thin-gauge material performance.
- Alloy Grade: CuNi44 (Copper-Nickel 44)
- UNS Number: C71500
- DIN Standard: DIN 17664
- ASTM Standard: ASTM B122
- Stable Electrical Resistance: Low temperature coefficient of resistance (TCR) of ±40 ppm/°C (typical) over -50°C to 150°C
- High Resistivity: 49 ± 2 μΩ*cm at 20°C
- Excellent Formability: High ductility allows for cold rolling to ultra-thin gauges (down to 0.005mm)
- Corrosion Resistance: Resistant to atmospheric corrosion, freshwater, and mild chemical environments
- Thermal Stability: Maintains properties up to 300°C (continuous use)
| Attribute | Value |
|---|---|
| Thickness Range | 0.005mm - 0.1mm (custom up to 0.5mm) |
| Width Range | 10mm - 600mm |
| Thickness Tolerance | ±0.0005mm (for ≤0.01mm); ±0.001mm (for >0.01mm) |
| Width Tolerance | ±0.1mm |
| Tensile Strength | 450 - 550 MPa (annealed state) |
| Elongation | ≥25% (annealed state) |
| Hardness (HV) | 120 - 160 (annealed); 200 - 250 (half-hard) |
| Surface Roughness (Ra) | ≤0.1μm (polished finish) |
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 43.0 - 45.0 |
| Copper (Cu) | Balance (55.0 - 57.0) |
| Iron (Fe) | ≤0.5 |
| Manganese (Mn) | ≤1.0 |
| Silicon (Si) | ≤0.1 |
| Carbon (C) | ≤0.05 |
| Total Impurities | ≤0.7 |
| Item | Specification |
|---|---|
| Surface Finish | Annealed (bright), polished, or matte |
| Supply Form | Rolls (length: 50m - 500m) or cut sheets (custom sizes) |
| Packaging | Vacuum-sealed in moisture-proof bags with anti-oxidation paper; wooden spools for rolls |
| Processing Options | Slitting, cutting, annealing, or coating |
| Quality Certification | RoHS, REACH compliant; material test reports (MTR) available |
- Precision resistors, current shunts, and potentiometer elements
- Strain gauges, temperature sensors, and pressure transducers
- Compensation wires for Type T thermocouples
- EMI/RFI shielding in high-frequency electronic devices
- Low-power heating foils for medical and aerospace equipment
We offer custom processing services tailored to specific application requirements. Free samples (100mm × 100mm) and detailed material certificates are available upon request.

