CuNi44

Standard

JIS DIN EN ASTM/UNS/CDA GB/T
/ CuNi44 / 2.0842 CuNi44 C72150 /

Merit

CuNi44 offers high electrical resistivity and very low temperature coefficient of resistance (TCR). Due to its low TCR, it finds use in wire-wound precision resistors that can operate up to 400°C (750°F). This alloy is also capable of developing a high and constant electromotive force when coupled with copper.

 

Applications

Temperature stable potentiometers, industrial rheostats, electric motor starter resistances, volume control devices,etc.

Ni min. 43.0
Mn max. 1.0
Fe max. 1.0
Cu Remainder

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Alloy Tensile Strength(Mpa) Elongation (%)
CuNi44 420-520 15-35

Physical properties of the above materials are conventional performance indicators.If you have some special requirements,(for example property and tolerance).please contact Kinmachi Company directly,we will give you professional assessments and answers.

Density (g/cm³) 8.9
Specific Resistance (μΩ-cm) 49
Coefficient of thermal expansion 10-6/℃ 14
Temp. Coeff. of Resistance ppm/℃ ±60
MaximumOperating Temp. of Element(℃) 600

*value for the lowest temper class

微信图片_20241127134317(1)
DIN: CuNi44 / 2.0842
EN: CuNi44
UNS: C72150
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