Copper/Nickel Alloy Disk (Cu70/Ni30)

Copper/Nickel Alloy Disk (Cu70/Ni30) is a corrosion-resistant, high-strength alloy combining copper’s excellent thermal and electrical conductivity with nickel’s durability and resistance to seawater degradation. The 70/30 composition offers an optimal balance between conductivity, strength, and resistance to biofouling, making it suitable for both research and industrial use. In disk form, it provides a stable and uniform surface for electrochemical studies, precision machining, and specialized component fabrication. This alloy is widely applied in marine engineering, chemical processing, and electrical manufacturing, particularly in condenser tubes, desalination systems, and corrosion-resistant electrodes. Technologies benefiting from this material include seawater-cooled heat exchangers, voltammetric sensors, and high-reliability connectors in harsh environments. In research, it serves as a model material for studying corrosion mechanisms, galvanic effects, and surface treatments in aggressive electrolytes. Its value lies in enabling high-performance, long-life components for critical applications where both strength and corrosion resistance are essential.

Quick Links:

Tolerance

Properties

Reference & Citations

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Disc

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

Material Properties for Alloys

Mechanical Properties

Element	Value
Elongation at break( % )	<45
Tensile strength( MPa )	410-420

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	37.4
Temperature coefficient( K⁻¹ )	-

Thermal Properties

Element	Value
Melting point( C )	1171
Specific heat( J K⁻¹ kg⁻¹ )	377@23°C
Thermal conductivity( W m⁻¹ K⁻¹ )	29.4
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	16.2@20-300°C