CuNi44

Alloy type: Constantan alloy Base material shape: Wire (round wire/flat wire) Alloy series: Copper-nickel alloy Implementation standard: GB/T-2010 Certification: ISO9001:2015

Category：

Copper Nickel Series

Keywords：High resistance electric heating alloy | Corrosion-resistant alloy | Thermal spraying materials

Message

CuNi44

CuNi44 Constantan is a resistance alloy primarily composed of copper and nickel. It features a low temperature coefficient of resistance, excellent machinability, corrosion resistance, and easy brazing, making it suitable for manufacturing various standard resistors, shunts, and precision resistors.

Temperature Coefficient of Resistance

A resistance alloy primarily composed of copper and nickel, featuring a low temperature coefficient of resistance

Machinability

A resistance alloy primarily composed of copper and nickel, with good machinability

Corrosion resistance and easy brazing

Corrosion resistance and easy brazing, suitable for manufacturing various standard resistors, shunts, and precision resistors

Chemical Composition

Constantan/6J40	P	S	C	Ni	Mn	Fe	Al	Cu
Min				44	1			Balance
Max

Physical Properties

Density	8.9 g/cm³
Resistance (20℃)	0.45±0.03(μΩ·m)
Temperature Coefficient	10-5/℃(200-600℃<-6
Operating Temperature	0~400℃
Tensile Strength	≥420MPa
Elongation	≥25
Melting Point	1280℃
Thermal Conductivity	23W/(m·K)

CuNi40

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