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Thermal Overload Relay Wire CuNi8 Alloy12 CN012 Low-Voltage Low Temperature Heating Featured Image
  • Thermal Overload Relay Wire CuNi8 Alloy12 CN012 Low-Voltage Low Temperature Heating
  • Thermal Overload Relay Wire CuNi8 Alloy12 CN012 Low-Voltage Low Temperature Heating
  • Thermal Overload Relay Wire CuNi8 Alloy12 CN012 Low-Voltage Low Temperature Heating
  • Thermal Overload Relay Wire CuNi8 Alloy12 CN012 Low-Voltage Low Temperature Heating

Thermal Overload Relay Wire CuNi8 Alloy12 CN012 Low-Voltage Low Temperature Heating

Short Description:

Copper Nickel Alloy is mainly made of copper and nickel. The copper and nickel can be melted together no matter what percentage. Normally the resistivity of CuNi alloy will be higher if the Nickel content is larger than Copper content. From CuNi1 to CuNi44, the resistivity is from 0.03μΩm to 0.49μΩm. That will help the resistor manufacture choosing the most suitable alloy wire.


  • Resistivity: 0.12+/-5% μΩ.m
  • diameter: 0.05-5.0mm
  • shape: round resistance wire
  • Surface: Bright
  • HS code: 7408290000
  • Material: CUNI
  • Density: 8.9 g/cm3
  • Sample: Small order accepted

    • Product Detail

    FAQ

    Product Tags

    Copper nickel alloy, which has low electric resistance, good heat-resistant and corrosion-resistant, easy to be

    processed and lead welded. It is used to make the key components in the thermal overload relay, low resistance

    thermal circuit breaker, and the electrical appliances. It is also an important material for electrical heating cable.

    Application of copper nickel alloy wire:
    1. heating components
    2. current-limiting resistance of thermal overload relay
    3. low-voltage circuit breaker
    4. low-voltage apparatus

    Properties/ Material
    Resistivity( 200C μΩ.m)
    Max.working temperature(℃)
    Tensile strength( Mpa )
    Melting point(℃)
    TCRx10-6 /℃(20~600℃)
    EMF vs Cu(μV/ ℃)(0~100 (℃)
    Density( g/cm3
    NC003
    (CuNi1)
    0.03
    200
    210
    1085
    <100
    -8
    8.9
    NC005
    (CuNi2)
    0.05
    200
    220
    1090
    <120
    -12
    8.9
    NC010
    (CuNi6)
    0.1
    220
    250
    1095
    <60
    -18
    8.9
    NC012
    (CuNi8)
    0.12
    250
    270
    1097
    <57
    -22
    8.9
    NC015
    (CuNi10)
    0.15
    250
    290
    1100
    <50
    -25
    8.9
    NC020
    (CuNi14)
    0.2
    300
    310
    1115
    <30
    -28
    8.9
    NC025
    (CuNi19)
    0.25
    300
    340
    1135
    <25
    -32
    8.9
    NC030
    (CuNi23)
    0.3
    300
    350
    1150
    <16
    -34
    8.9
    NC035
    (CuNi30)
    0.35
    350
    400
    1170
    <10
    -37
    8.9
    NC040
    (CuNi34)
    0.4
    350
    400
    1180
    0
    -39
    8.9
    NC050
    (CuNi44)
    0.5
    400
    420
    1200
    <-6
    -43
    8.9




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