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CuNi44 Resistance Strip / Foil Copper Based Alloys 0.02mm Thickness

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China Ohmalloy Material Co.,Ltd certification
China Ohmalloy Material Co.,Ltd certification
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CuNi44 Resistance Strip / Foil Copper Based Alloys 0.02mm Thickness

CuNi44 Resistance Strip / Foil Copper Based Alloys 0.02mm Thickness
CuNi44 Resistance Strip / Foil Copper Based Alloys 0.02mm Thickness CuNi44 Resistance Strip / Foil Copper Based Alloys 0.02mm Thickness

Large Image :  CuNi44 Resistance Strip / Foil Copper Based Alloys 0.02mm Thickness Get Best Price

Product Details:
Place of Origin: China
Brand Name: Ohmalloy
Certification: ISO
Model Number: Cu-Ni44
Payment & Shipping Terms:
Minimum Order Quantity: 10kg
Packaging Details: in coil with wooden case
Delivery Time: 7-20Days
Payment Terms: L/C, D/A, D/P, T/T, , MoneyGram
Supply Ability: USD 25/kg
Detailed Product Description
Material: Cu-Ni Type: Strip
Color: Copper Delivery Time: 7-20Days
Brand: Ohmalloy
High Light:

co ni alloy


copper nickel alloy

Product Details

0.02mm thickness CuNi44(constantan) Resistance Foil,low resistance alloy

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;


Chemical Composition and Main Property of Cu-Ni Low Resistance Alloy


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%

Nickel 45
Copper Bal
Manganese 1

Typical Mechanical properties(1.0mm)

Yield Strength



Mpa Mpa %
250 420 25


Typical Physical properties

Density(g/cm) 8.9
Electrical resisitivity at20 (Ωmm2/m) 0.49
Temperature factor of resistivity(20℃~600℃)X10-5/℃ <10
CuNi44 Resistance Strip / Foil Copper Based Alloys 0.02mm Thickness 0Conductivity coefficient at 20℃(WmK) 23
EMF vs Cu(μV/℃ )(0~100℃ ) -43

Coefficient of thermal expansion

Temperature Thermal Expansion x10-6/K
20 - 400 15

Specific heat capacity

Temperature 20
J/gK 0.41
Melting Point () 1280
Max continuous operating temperature in air () 400
Magnetic properties non-magnetic

Corrosion resistance performance

Working in atomsphere at 200 good

Air and oxygen contain


gases with Nitrogen good

gases with sulfur



gases with sulfur


carburization good

Style of supply

Alloys Name Type Dimension
OhmAlloy049W Wire D=0.06mm~8mm
OhmAlloy049R Ribbon



OhmAlloy049S Strip



OhmAlloy049F Foil



OhmAlloy049B Bar







Contact Details
Ohmalloy Material Co.,Ltd

Contact Person: Mr. Qiu

Tel: +8613795230939

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