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

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Ohmalloy Material Co.,Ltd
City: Shanghai
Province/State: Shanghai
Country/Region: China
Tel: 86-21-66796338
Contact Person:
Mr Qiu

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

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

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

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%

Nickel45
CopperBal
Manganese1

Typical Mechanical properties(1.0mm)

Yield Strength

Tensile

Strength

Elogation
MpaMpa%
25042025

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

TemperatureThermal Expansion x10-6/K
20 - 40015

Specific heat capacity

Temperature20
J/gK0.41
Melting Point ()1280
Max continuous operating temperature in air ()400
Magnetic propertiesnon-magnetic

Corrosion resistance performance

Working in atomsphere at 200good

Air and oxygen contain

Gases

good
gases with Nitrogengood

gases with sulfur

oxidability

good

gases with sulfur

oxidability

bad
carburizationgood

Style of supply

Alloys NameTypeDimension
OhmAlloy049WWireD=0.06mm~8mm
OhmAlloy049RRibbon

W=0.4~40mm

T=0.05~2.9m

OhmAlloy049SStrip

W=8~200mm

T=0.1~3.0

OhmAlloy049FFoil

W=6~120mm

T=0.005~0.1

OhmAlloy049BBar

Dia=8~100mm

L=50~1000




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