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TANKII Factory Price CUNI Resistance Copper Nickel Alloy Electric Resistor Constantan Tape CUNI44 Konstantan Strip

Short Description:


  • Brand Name: TANKII
  • Model Number: constantan/Konstantan
  • Chemical Composition: Ni45% Cu55%
  • Shape: Strip/Foil
  • Surface: bright
  • Application: Resistance
  • Product Detail

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               TANKII Factory Price Copper Nickel Alloy Electric Resistor Constantan Tape  konstantan strip

    Constantan Definition

    Resistance alloy with moderate resistivity and low temperature coefficent of resistance with a flat resistance/temperature curve over a wider range than the ”manganins”. Constantan also shows better corrosion resistance than the man ganins. Uses tend to be restricted to ac circuits. Constantan is also the negative element of the type J thermocouple with Iron being the positive; type J thermocouples are used in heat treating applications. Also, it is the negative element of the type T thermocouple with OFHC Copper the positive; type T thermocouples are used at cryogenic temperatures.

    Chemical Content, %

    Ni Mn Fe Si Cu Other ROHS Directive
    Cd Pb Hg Cr
    44 1.50% 0.5 - Bal - ND ND ND ND

     

    Mechanical Properties

    Max Continuous Service Temp 400℃
    Resisivity at 20℃ 0.49±5%ohm mm2/m
    Density 8.9 g/cm3
    Thermal Conductivity -6(Max)
    Melting Point 1280℃
    Tensile Strength,N/mm2   Annealed,Soft 340~535 Mpa
    Tensile Strength,N/mm3   Cold Rolled 680~1070 Mpa
    Elongation(anneal) 25%(Min)
    Elongation(cold rolled) ≥Min)2%(Min)
    EMF vs Cu, μV/ºC (0~100ºC) -43
    Micrographic Structure austenite
    Magnetic Property Non

     


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