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Ni40Cr20 -  is an austenitic nickel-chromium alloy suitable for temperature applications up to 1100°C.

This alloy is characterized by high resistivity, good oxidation resistance, good ductility after use and excellent weldability.

Ni40Cr20 is used for a wide range of electric heating elements in domestic appliances. Typical applications: hot plates, heavy-duty rheostats, storage heaters, convection heaters, fan heaters, heating
cables, electric blankets and pads, car seats, resistors, etc.


Chemical composition

Nominal composition % C Si Mn Ni Cr Al Fe
min - 1.60 - 34.00 18.00 - Bal
max 0.10 2.50 1.00 37.00 21.00 0.30


Physical properties

Density, g/cm3 7.90
Resistivity at 20°C, ῼ mm /m 1.08
Thermal conductivity at 20°C, W/mk 13.00
Melting point, °C 1390
Max operating temperature, °C 1100
Creep strength, MPa

600°C 100.00
800°C 20.00
1000°C 4.00
Magnetic properties nonmagnetic


Delivery programm

Wire: (D) 0.02 - 12.00 mm

Flat wire: (TK) 0.05 - 0.20 mm / (W) 2.00 - 5.00 mm

Strip: (TK) 0.05 - 5.00 mm / (W) 5.00 - 250.00 mm


W.N: 1.4886; UNS: N08330

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