Constantan Wire (6J40/CN49W)

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seat: Beijing
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Last update: 2017-12-25 17:08
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Basic Info.Model NO.:6J40/CN49WProduct Type:WireMaterial:Copper NickelCarbon Content:Low CarbonPCD:2ET:0Hole:0Package:Spool, Carton, Wooden CaseTrademark:UALLOYOrigin:Hangzhou, China (Mainland)HS Code:74082200Production Capacity:300 Mt/MonthProduct DescriptionConstantan Wire:(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 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.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%042025Typical 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℃ )-43Coefficient of thermal expansionTemperatureThermal Expansion x10-6/K20 ℃- 400℃15Specific heat capacityTemperature20℃J/gK0.41Melting point (℃)1280Max continuous operating temperature in air (℃)400Magnetic propertiesnon-magneticCorrosion resistance performanceAlloysWorking In atmosphere at 20℃           Working at max temperature 200℃Air and oxygen containgasesgases with Nitrogengases with sulfuroxidabilitygases with sulfurreductibilitycarburizationCuNi44goodgoodgoodgoodbadgoodStyle 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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