Nickel Chromium Alloy for Electrical Resistance Heating

Nickel Chromium Alloy for Electrical Resistance Heating
  • Nickel Chromium Alloy for Electrical Resistance Heating
  • Nickel Chromium Alloy for Electrical Resistance Heating
  • Nickel Chromium Alloy for Electrical Resistance Heating
  • Nickel Chromium Alloy for Electrical Resistance Heating
  • Nickel Chromium Alloy for Electrical Resistance Heating
  • Nickel Chromium Alloy for Electrical Resistance Heating
    • Inquiry

    The nickel chromium alloy for electrical resistance heating has higher resistivity, great resistance to surface oxidation and excellent strength at high temperature as well as superior processability and weldability. For long time use, this nickel chromium alloy is hard to deform and has small elongation. In addition, it features high radiant emittance, strong corrosion resistance, nonmagnetic property and long service life.

    In the family of this high resistance material, the Cr20Ni80 alloy boasts more superior comprehensive properties. It is the preferred alloy for high quality electrical heating element and widely used in metallurgy, household appliances and machinery manufacturing industry for heating elements and in electric appliance industry for resistance materials.

    Since made from rare nickels, the nickel chromium alloy for electrical resistance heating comes with higher price than iron-chromium-aluminum alloy but lower service temperatures.

    Technical Parameters of Electrical Resistance Nickel Alloy
    Model Ni80Cr20 Ni70Cr30 Ni60Cr15 Ni35Cr20 Ni30Cr20
    Properties
    Main chemical composition (％) Ni — — 55.0~61.0 34.0~37.0 30.0~34.0
    Cr 20.0~23.0 28.0~31.0 15.0~18.0 18.0~21.0 18.0~21.0
    Fe ≤1.0 ≤1.0 — — —
    Maximum service temperature (℃) 1200 1250 1150 1100 1100
    Average melting point (℃) 1400 1380 1390 1390 1390
    Density (g/cm3) 8.40 8.10 8.20 7.90 7.90
    Resistivity (μΩ.m,20 ℃) 1.09 1.18 1.12 1.0 1.04
    Elongation (%) ≥20 ≥20 ≥20 ≥20 ≥20
    Specific heat (J/g. ℃) 0.440 0.461 0.494 0.500 0.500
    Heat conductivity coefficient (KJ/m.h.℃) 60.3 45.2 45.2 43.8 43.8
    Linear expansion coefficient (α×10-6/℃) 18.0 17.0 17.0 19.0 19.0
    Microscopic structure Austenitic Austenitic Austenitic Austenitic Austenitic
    Magnetism Non Non Non Non Non
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    Optimal Choice for Alloy Dealers
    Optimal Choice for Alloy Dealers Along with the increasing growth of alloy material categories and world-wide applications, its production process is continuously optimized, reducing manufacturing and processing cost for you.
    Since 2002 we've been on a mission to improve
    every aspect of materials testing, so our customers can achieve
    consistent and accurate results, every time.
    Broad Product Range Broad Product RangeOur product range goes far beyond just nickel alloys with varieties of bars, sheets, tubes, wires, coils and profiles. Electrical resistance alloy and nickel alloy welding material are also available.
    Meticulous Production Meticulous ProductionBacked by complete manufacturing equipment and experienced professionals, we ensure that all the processes are carried out reliably and precisely in our own production center.
    Unsurpassed Quality Unsurpassed QualityAll our nickel alloys and nickel-based materials are subject to an array of test procedures, to ensure these metal alloys are provided in full compliance with industry standards.