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CuNi44 NC050 Foil High-Performance Nickel-Copper Alloy for Electrical & Industrial Use

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CuNi44 NC050 Foil High-Performance Nickel-Copper Alloy for Electrical & Industrial Use

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Brand Name :	Huona
Model Number :	CuNi44
Certification :	ISO9001
Price :	Negotiable
Payment Terms :	L/C,T/T,Western Union,MoneyGram
Supply Ability :	500 tons per year
Delivery Time :	5-21 days

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CuNi44 NC050 Foil High-Performance Nickel-Copper Alloy for Electrical & Industrial Use

Product Description

CuNi44 Foil

Product Overview

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—such as precision resistors, strain gauges, and thermocouple components.

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

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)

Chemical Composition (Typical, %)

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

Product Specifications

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 (e.g., insulation layers for electrical applications)
Quality Certification	RoHS, REACH compliant; material test reports (MTR) available

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.

We offer custom processing services tailored to specific application requirements. Free samples (100mm × 100mm) and detailed material certificates are available upon request.

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