Nickel/Chromium Alloy Disk (Ni80/Cr20)

Nickel Chromium Alloy Disk (Ni80/Cr20) delivers the same high-temperature strength, oxidation resistance, and electrical resistivity of the Ni–Cr family in a precision-machined flat form. This makes it an ideal component for applications where surface uniformity and contact stability are critical. It is widely applied in electronic contacts, heating element terminations, and high-temperature sensor components in aerospace, manufacturing, and electronics industries. Key uses include functioning as terminal plates in resistive heating assemblies, substrates for high-temperature coatings, and contact surfaces in thermal testing apparatus. In research, its predictable thermal expansion and resistance stability make it an invaluable reference material for studying heat transfer, surface oxidation kinetics, and electrical performance under stress. Its form factor and stable performance profile ensure reliable integration into both production systems and experimental setups.

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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( % )	40
Tensile strength( MPa )	650-1100

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	108
Temperature coefficient( K⁻¹ )	0.00005

Thermal Properties

Element	Value
Maximum use temperature in air( C )	1150-1250
Melting point( C )	1400
Thermal conductivity( W m⁻¹ K⁻¹ )	13.4@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	14@20-100°C