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Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating

    Buy cheap Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating from wholesalers
     
    Buy cheap Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating from wholesalers
    • Buy cheap Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating from wholesalers
    • Buy cheap Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating from wholesalers
    • Buy cheap Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating from wholesalers
    • Buy cheap Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating from wholesalers

    Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating

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    Brand Name : Victory
    Model Number : Cr30Ni70
    Certification : CE
    Payment Terms : L/C, T/T, Western Union, MoneyGram
    Supply Ability : 300 tons per month
    Delivery Time : 5-21 days
    • Product Details
    • Company Profile

    Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating


    Cr30Ni70 Nichrome Wire: Exceptional Thermal Stability for Long-Lasting Industrial Heating


    NiCr Series

    Cr30Ni70 nickel-chromium alloy wire is a high-performance resistance heating material with excellent high-temperature stability and oxidation resistance, and is widely used in the field of industrial heating. Its chemical composition mainly includes 70% nickel and 30% chromium, with a melting point of about 1380℃, a maximum operating temperature of up to 1250℃, a resistivity of 1.18±0.05μΩ·m (at 20℃), a tensile strength of 810 MPa, and an elongation of 30%, showing good mechanical properties.
    The high-temperature stability of Cr30Ni70 alloy wire makes it not easy to deform during long-term use and has a long service life. In addition, the alloy wire also has good weldability and forming ability, suitable for manufacturing heating elements of various shapes.
    Cr30Ni70 alloy wire is widely used in industrial furnaces, electric heating elements, heat treatment equipment, and other fields that require high-temperature stability, especially in reducing atmospheres and high-temperature oxidizing environments. Its excellent performance makes it an indispensable material in industries such as aerospace, energy, and metallurgy.



    Performance materialCr10Ni90Cr20Ni80Cr30Ni70Cr15Ni60Cr20Ni35Cr20Ni30
    CompositionNi90RestRest55.0~61.034.0~37.030.0~34.0
    Cr1020.0~23.028.0~31.015.0~18.018.0~21.018.0~21.0
    Fe≤1.0≤1.0RestRestRest
    Maximum temperature130012001250115011001100
    Meltiing point 140014001380139013901390
    Density g/cm38.78.48.18.27.97.9
    Resistivity at 20((μΩ·m)1.09±0.051.18±0.051.12±0.051.00±0.051.04±0.05
    Elongation at rupture≥20≥20≥20≥20≥20≥20
    Specific heat0.440.4610.4940.50.5
    J/g.
    Thermal conductivity60.345.245.243.843.8
    KJ/m.h
    Coefficient of lines expansion1817171919
    a×10-6/
    (20~1000)
    Micrographic structureAusteniteAusteniteAusteniteAusteniteAustenite
    Magnetic propertiesNon-magneticNon-magneticNon-magneticWeak magneticWeak magnetic
    Micrographic structureFerriteFerriteFerriteFerriteFerriteFerrite
    Magnetic propertiesMagneticMagneticMagneticMagneticMagneticMagnetic

    FormSpecification
    WireDiameter=0.025mm~8mm
    Flat wireWidth=0.40~6.0mmThick=0.03~0.50mm
    Stripwidth=8~250mmThick=0.05~3.0mm
    BarDiameter=8~100mmLong=50~1000

    Size Range
    Wire
    dia 0.03-7.5mm
    dia 8.0-12.0mm
    Ribbon
    (0.05-0.35)*(0.5-6.0)mm
    Strip
    (0.50-2.5)*(5-180)mm
    Rod
    8-50mm

    • Feature

    High temperature performance:
    It has excellent high temperature strength and oxidation resistance, and can work stably at 1000°C or even higher.
    The chromium oxide protective film formed on the alloy surface can effectively prevent further oxidation.
    Corrosion resistance:
    It has strong corrosion resistance to chemical media such as acids and alkalis, especially in high temperature corrosion environments.
    Thermal stability:
    It has a low thermal expansion coefficient (about 14×10⁻⁶/K) and good dimensional stability when the temperature changes.
    It has a moderate specific heat capacity (about 0.4 J/g·K), which is suitable for applications that respond quickly to temperature changes.
    Resistance performance:
    The room temperature resistivity is about 1.1-1.3×10⁻⁶Ω·m, and the resistivity changes little at high temperatures.
    Processing performance:
    Although the hardness is high, it can be finely processed through appropriate heat treatment and processing technology.

    • Q&A

    Which industries is Cr30Ni70 wire suitable for?
    Cr30Ni70 wire is widely used in electric heating, chemical industry, metallurgy, aerospace and other industries, especially for high-temperature furnaces, electric heating elements, chemical reactors and aerospace high-temperature parts.
    What are its welding methods?
    Cr30Ni70 wire welding methods include argon arc welding (TIG), metal arc welding (MIG) and laser welding, etc. The specific selection depends on the thickness of the workpiece and the welding requirements.
    How is the oxidation resistance of Cr30Ni70 wire?
    Cr30Ni70 wire has excellent oxidation resistance and can form a dense chromium oxide protective film at high temperature to prevent further oxidation. At 1000℃, its oxidation rate is extremely low, which is suitable for long-term high-temperature use.


    Cr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial HeatingCr30Ni70 Nichrome Wire Exceptional Thermal Stability for Long Lasting Industrial Heating


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