NiCr 80 20 Nb
NiCr 80/20 Nb is an austenitic nickel-chromium alloy (NiCr alloy) additionally doped by Niobium. High operational temperature - 1200°C, excellent plasticity at room and mechanical stability at elevated temperatures makes this materials essential for chemical and corrosion resistance applications. NiCr 80/20 Nb is also known as NiCr 80/20 Cb. Niobium formerly known as Columbium used as alloying additive in big pool of superalloys usually to improve physical or mechanical properties of alloy at elevated temperatures.

Chemical composition

Nickel Ni min.75.0% Chromium Cr 19.0-21.0% Manganese Mn max 2.5% Niobium Nb 1.0% Iron Fe 1.0% Silicium Si max 1.0-2.0%
Carbon C max 0.15% Sulfur S max 0.015% Phosphorus P max 0.03%

Physical properties

Density g/cm3 Electrical resistivity at 20°C Ω mm2/m Melting point °C Max continuous operating temperature in air °C Magnetic properties
8.30 1.08 1380 1200 non-magnetic

Mechanical properties

Yield strength Rp0.2 MPa Tensile strength Rm MPa Elongation A% Hardness Hv
230 650-800 30 180

Product forms

Product Size, mm Condition of supply
wire 0.2 – 12.0 soft annealed


Consideration of alloy shall always be given when selecting of materials for metal belts, in such a manner NiCr 80/20 Nb is a good solution for parts used in chemical industries, because of its strength at wide range of temperatures:
  • industrial furnaces up to 1200 °C
  • wire meshes and conveyer belts systems
  • heat treatment parts

Our customers can buy NiCr 80 20 Nb wire online according to their requests.