NiCr Alloy

Cr20Ni80 is a nickel-chromium alloy known for its excellent high-temperature performance, outstanding ductility, and superior resistance to oxidation and corrosion. It retains structural stability even under prolonged exposure to extreme heat, making it a preferred material for heating elements and industrial applications. With its excellent machinability and weldability, it is widely used in electrical resistance heating and thermal processing industries.

• Wire 0.05-7.5
• Rod 8-50
• Flat Wire (0.05-0.35)*(0.5-6.0)
• Strip/Foil (0.5-2.5)*(5-40)

• Nickel (Ni): Rest
• Chromium (Cr): 20.0-23.0
• Iron (Fe): ≤1.0

• Grade: Cr20Ni80
• Max. Service Temperature (°C): 1200
• Melting Point (°C): 1400
• Density (g/cm³): 8.4
• Resistivity at 20℃ (μΩ•m): 1.09±0.05
• Elongation at Rupture (%): ≥20
• Specific Heat (J/g.℃): 0.44
• Thermal Conductivity (KJ/m.h.ºC): 60.3
• Coefficient of Lines Expansion (α×10⁻⁶/20~1000ºC): 18
• Micrographic Structure: Austenite
• Magnetic Properties: Non-magnetic