CuNi44(constantan) Resistance Strip/Foil

Grade: Constantan Resistance Alloy (Ohmalloy49)
Chemical Composition: Ni:44% Cu: Rest%
Max. continuous service temp. of element(°C) :400degrees
Resistivity at 20ºC(μΩ·m):0.49 ohm mm2/m
Density(g/cm3): 8.9
NiCr series: CuNi1;CuNi2;CuNi6;CuNi8;CuNi10;CuNi14;CuNi19;

CuNi23;CuNi30;CuNi34;CuNi40(Constantan);Manganin

CommonName:CuNi45,NC50,Cuprothal,Alloy294,NicoMWS-294Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.)

OhmAlloy049 is a copper-nickel alloy (Cu56Ni44 alloy) characterized by high electrical resistance, high ductility and good corrosion resistance. It is suitable for use at temperatures up to 400°C Typical applications for OhmAlloy49 are temperature-stable potentiometers, industrial rheostats and electric motor starter resistances.The combination of negligible temperature coefficient and high resistivity makes the alloy particulary suitable for the winding of precision resistors.

OhmAlloy049 is manufactured from electrolytic copper and pure nickel. In finer wire sizes the alloy is designated as OhmAlloy49TC(Thermocouple).

Normal composition%

Typical Mechanical properties(1.0mm)

Typical Physical properties

Density(g/cm)	8.9
Electrical resisitivity at20 (Ωmm2/m)	0.49
Temperature factor of resistivity(20℃~600℃)X10-5/℃	<10
Conductivity coefficient at 20℃(WmK)	23
EMF vs Cu(μV/℃ )(0~100℃ )	-43

Coefficient of thermal expansion

Specific heat capacity

Corrosion resistance performance

Style of supply