Iron
Fe
Bal.
Nickel
Ni
30.0~34.0%
Chromium
Cr
18.0~21.0%
Silicon
Si
1.0~2.0%
Manganese
Mn
≤1.00%
Carbon
C
≤0.08%
Sulphur
S
≤0.015%
Phosphorus
P
≤0.02%
Cr20Ni30 electrothermal alloy is composed of nickel-chromium alloy. It has high resistivity, good oxidation resistance, good stability, ductility and good weldability. The maximum applicable temperature can reach 1100 degrees, and the service life is longer than that of FeCrAl alloy.
The alloy is widely used in thermal storage heaters, convection heaters, heavy-duty varistor and fan heaters, as well as de-icing elements, electric blankets, car seat cushions, substrate heaters, floor heating and various resistors.
please contact us if you have any needs,we will give you good quality products and competitive price.
Other nichrome alloy grades: Ni80Cr20, Ni70Cr30, Ni60Cr15, Ni35Cr20, etc.
Cr20Ni30 Mechanical performance (1.0mm)
| Yield strength |
Tensile Strength |
Elongation |
| Mpa |
Mpa |
% |
| 340 |
675 |
35 |
Cr20Ni30 Physical properties
| Density |
Resistivity at 20℃ |
Thermal conductivity at 20°C |
Specific heat capacity
at 20℃ |
Melting point |
Maximum use temperature of the element |
Magnetic |
| (g/cm3) |
(Ωmm2/m) |
(WmK) |
J/gK |
(℃) |
(℃) |
|
| 7.9 |
1.04 |
13 |
0.5 |
1390 |
1100 |
Non |
| Thermal expansion coefficient |
| Temperature |
Average linear expansion coefficientx10-6/℃ |
| 20 ℃- 1000℃ |
19 |
Cr20Ni30 Resistance temperature factor (correction factor)
| 20℃ |
100℃ |
200℃ |
300℃ |
400℃ |
500℃ |
600℃ |
| 1 |
1.023 |
1.052 |
1.079 |
1.103 |
1.125 |
1.141 |
| 700℃ |
800℃ |
900℃ |
1000℃ |
1100℃ |
1200℃ |
1300℃ |
| 1.158 |
1.173 |
1.187 |
1.201 |
1.214 |
1.226 |
- |
Supply form and specification
| Alloy grade |
Form |
Specification |
| Ni30Cr20 |
Wire |
Diameter=0.3mm~8mm |
| Ni30Cr20 |
Flat wire |
Width=1~5mm |
Thick=0.08~2mm |
| Ni30Cr20 |
Strip |
width=5~250mm |
ThickT=0.1~5.0mm |
| Ni30Cr20 |
Foil |
width=6~120mm |
Thick=0.01~0.1mm |
| Ni30Cr20 |
Bar |
Diameter=8~100mm |
Long=50~1000 |
