Top Quality Constantan Alloy Wire 6J40

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seat: Beijing
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Last update: 2017-12-24 16:29
Browse the number: 57
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Common Name:CuNi44,NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan,constantan.) CuNi44 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 CuNi44 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.CuNi44 is manufactured from electrolytic copper and pure  nickel. In finer wire sizes the alloy is designated as CuNi44TC(Thermocouple).Normal composition%Nickel44Manganese1CopperBal.Typical Mechanical properties(1.0mm)Yield strengthTensile StrengthElongationMpaMpa%042025 Typical Physical propertiesDensity (g/cm3)8.9Electrical resistivity at 20℃ (Ωmm2/m)0.49Temperature factor of resistivity(20℃~600℃)X10-5/℃ -6Conductivity coefficient at 20℃ (WmK)                 23EMF vs Cu(μV/℃ )(0~100℃ )-43 Coefficient of thermal expansionTemperatureThermal Expansion x10-6/K20 ℃- 400℃15 Specific heat capacityTemperature20℃J/gK0.41 Melting point (℃)1280Max continuous operating temperature in air (℃)400Magnetic propertiesnon-magnetic Corrosion resistance performanceAlloysWorking In atmosphere at 20℃           Working at max temperature 200℃Air and oxygen containgasesgases with Nitrogengases with sulfuroxidabilitygases with sulfurreductibilitycarburizationCuNi44goodgoodgoodgoodbadgood Style of supplyAlloys NameTypeDimensionCuNi44WWireD=0.03mm~8mmCuNi44RRibbonW=0.4~40T=0.03~2.9mmCuNi44SStripW=8~200mmT=0.1~3.0CuNi44FFoilW=6~120mmT=0.003~0.1CuNi44BBarDia=8~100mmL=50~1000                                                    
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