Constantan® Spooled Wire

Formula: Cu 55/Ni 45

Form: Wire

Material: Constantan®

Commodity: Alloys

Temper: Annealed

Thermocouple Wire: May Be Used As One Component Of A Thermocouple

Hazard Pictogram: GHS07, GHS08

Goodfellow Constantan® Spooled Wire is a high-performance copper-nickel alloy designed for advanced research and industrial applications. This annealed wire is ideal for thermocouples, resistors, and strain gauges due to its stable electrical resistivity, which remains consistent despite temperature fluctuations. It excels in harsh environments, such as industrial furnaces and high-current applications, thanks to its durability and resistance to oxidation and corrosion. This wire is essential for sensor applications in aerospace and automotive industries, where precision is crucial. Additionally, it is widely used in research and development for prototyping sensors and electronic components, aiding advancements in materials science and engineering.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

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
Hardness - Brinell	100-300
Elongation at break( % )	45
Modulus of elasticity( GPa )	162
Izod impact strength( J m⁻¹ )	107
Tensile strength( MPa )	400-590

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	52
Temperature coefficient( K⁻¹ )	0.00002+/-

Thermal Properties

Element	Value
Maximum use temperature in air( C )	500
Melting point( C )	1225-1300
Thermal conductivity( W m⁻¹ K⁻¹ )	19.5@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	14.9@20-100°C