CuNi10 Resistance Alloy

CuNi10 Resistance Alloy
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Introduction
CuNi10 resistance alloy is a kind of copper nickel binary alloy with low temperature coefficient of resistance. It is used to make rheostat, shunt, controller and other low voltage electrical components with a maximum operating temperature of 250°C. Due to its good heat coefficient, this alloy is widely used in low temperature heating cable of automobile heating cushion, railway snow melting, etc.

Type of supply
Type Size
Round wire D=0.06mm~8mm
Flat wire W=0.4~40mm T=0.05~2.9mm
Strip W=8~200mm T=0.1~3.0mm
Foil W=6~120mm T=0.005~0.1mm
Rod Dia=8~100mm L=50~1000mm
Main chemical composition (%)
Nickel 10 Manganese -
Copper Balance

Physical parameters
Yield strength (Mpa) Tensile strength (Mpa) Elongation (%) Density (g/cm3) Resistivity (20℃)
(Ω・mm2/m)
Resistance temperature coefficient (20℃~600℃)
10-5/℃
Conductivity (20℃)
(WmK)
Electromotive force against copper (μV/℃ ) (0~100℃) Expansion coefficient (20 ℃- 400℃)
x10-6/K
Specific heat capacity (20℃)
(J/g・K)

Melting point
(℃)
Max.operating temperature (℃) Magnetism
130 290 25 8.9 0.15 <50 59 ―25 17.5 0.380 1100 250 Non magnetic
Corrosion resistance performance
Atmospheric corrosion resistance at 20℃ Corrosion resistance at maximum operating temperature
Air and other oxygen-containing gases Ammonia containing gas Sulfurous gas Sulfurous gas Carburization
(oxidizability) (reducibility)
Good Common Common Common Poor Good

Index
alloy strip, resistance wire

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