Cr20ni35 Alloy Material Heating Resistance Electrical Nichrome Flat Ribbon Strip

Nickel alloy resistance nichrome 80 20 strip

Ni80Cr20 is a nickel-chromium alloy (NiCr alloy) characterized by high resistivity, good oxidation resistance and very good form stability. It is suitable for use at temperatures up to 1200°C,and hold a superior service life compared to Iron chromium alumium alloys. Typical applications for Ni80Cr20 are electric heating elements in home appliances,industrial furnaces and resistors(wirewound resistors,metal film resistors), flat irons, ironing machines, water heaters, plastic moulding dies, soldering irons, metal sheathed tubular elements and cartridge elements. Normal composition%
C P S Mn Si Cr Ni Al Fe Other
Max
0.03 0.02 0.015 0.60 0.75~1.60 20.0~23.0 Bal. Max 0.50 Max 1.0 -
Typical Mechanical properties(1.0mm)
Yield strength Tensile Strength Elongation
Mpa Mpa %
420 810 30
Typical Physical properties
Density (g/cm3) 8.4
Electrical resistivity at 20ºC(mm2/m) 1.09
Conductivity coefficient at 20ºC (WmK) 15
 
Coefficient of thermal expansion
Temperature Coefficient of Thermal Expansion x10-6/ºC
20 ºC- 1000ºC 18
Specific heat capacity
Temperature 20ºC
J/gK 0.46
 
Melting point (ºC) 1400
Max continuous operating temperature in air (ºC) 1200
Magnetic properties non-magnetic
 
Temperature Factors Of Electrical Resistivity
20ºC 100ºC 200ºC 300ºC 400ºC 600ºC
1 1.006 1.012 1.018 1.025 1.018
700ºC 800ºC 900ºC 1000ºC 1100ºC 1300ºC
1.01 1.008 1.01 1.014 1.021 -
Style of supply
Alloys Name Type Dimension
Ni80Cr20W Wire D=0.03mm~8mm
Ni80Cr20R Ribbon W=0.4~40 T=0.03~2.9mm
Ni80Cr20S Strip W=8~250mm T=0.1~3.0
Ni80Cr20F Foil W=6~120mm T=0.003~0.1
Ni80Cr20B Bar Dia=8~100mm L=50~1000