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High Weld Ability Size 0.4mm Nichrome Wire Ni35Cr20 for Industrial Furnace

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     Electrical resistance alloys are widely applied in electrical heaters, particularly NiCr. Nichrome is nickel and chromium alloy which is commonly used in production of resistance wire because of its high resistivity and stable anti-oxidation properties at temperatures up to 1250°C that’s why resistance wires are well-suited for service in extreme environments where they are subjected to pressure and heat. Vladimir Plant of Precision Alloys has been manufacturing resistance alloys and heating alloys from its foundation. Our strength is making wires, strips, ribbon and foil, including NiCr alloys and Fe-Cr-Al alloys.

Grade Ni80Cr20 Ni70Cr30 Ni60Cr23 Ni60Cr15 Ni35Cr20 Karma Evanohm
Nominal composition% Ni Bal Bal 58.0-63.0 55.0-61.0 34.0-37.0 Bal Bal
  Cr 20.0-23.0 28.0-31.0 21.0-25.0 15.0-18.0 18.0-21.0 19.0-21.5 19.0-21.5
  Fe ≦1.0 ≦1.0 Bal Bal Bal 2.0-3.0
        Al1.0-1.7  Ti 0.3-0.5     Al2.7-3.2  Mn0.5-1.5 Al2.7-3.2 Cu2.0-3.0  Mn0.5-1.5
Max operating temp(°C) 1200 1250 1150 1150 1100 300 400
Resisivity(Ω/cmf,20℃) 1.09 1.18 1.21 1.11 1.04 1.33 1.33
Resisivity(uΩ/m,60°F) 655 704 727 668 626 800 800
Density(g/cm³) 8.4 8.1 8.4 8.2 7.9 8.1 8.1
Thermal Conductivity(KJ/m·h·℃) 60.3 45.2 45.2 45.2 43.8 46.0 46.0
Linear Expansion Coefficient(×10¯6/℃)20-1000℃) 18.0 17.0 17.0 17.0 19.0 - -
Melting Point(℃) 1400 1380 1370 1390 1390 1400 1400
Hardness(Hv) 180 185 185 180 180 180 180
Tensile Strength(N/mm) 750 875 800 750 750 780 780
Elongation(%) ≥20 ≥20 ≥20 ≥20 ≥20 10-20 10-20
Micrographic Structure austenite austenite austenite austenite austenite austenite austenite
MagneticProperty Non Non Non Slightly Non Non Non
Fast Life(h/℃) ≥81/1200 ≥50/1250 ≥81/1200 ≥81/1200 ≥81/1200 - - 

 


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