Nickel/Chromium Alloy Spooled Wire (Ni80/Cr20)

Nickel Chromium Alloy Spooled Wire (Ni80/Cr20) delivers high tensile strength, excellent oxidation resistance, and stable electrical resistivity for use in extreme thermal environments. The 80% nickel content ensures good ductility and mechanical strength, while chromium improves scaling resistance at elevated temperatures. This spooled format is optimized for automated manufacturing, coil winding, and resistance element fabrication. Applications span industrial furnaces, heating pads, and laboratory hot-wire experiments. Specific uses include precision resistance coils, soldering tool heating elements, and hot-wire foam cutting systems. In research, this wire supports high-temperature creep studies, electrical resistance behavior analysis, and prototype heating device development. Its combination of long-term stability and ease of handling makes it an essential material in both production and experimental thermal systems.

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Tolerance

Properties

Reference & Citations

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Wire

Diameter		±10%
Length		+5% / -1%

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