DESCRIPTION
Ni80Cr20 – is electric resistance alloy with boundary working temperature 1230°C.
This alloy provides extraordinary performances at temperatures up to 1200°C and offers superior operation life compared to other nickel-chromium alloys. Ni80Cr20 is characterized by high resistivity, good oxidation resistance (especially under conditions of frequent switching or wide temperature fluctuation), very good form stability, good ductility after use and excellent weldability.
Ni80Cr20 is used for electric heating elements in home appliances and industrial furnaces. Typical applications are: irons, water heaters, heavy duty resistors, tubular elements, electric cooking equipment, heating batteries, electric furnaces, etc.
CHEMICAL COMPOSITION
| Nom. composition |
С |
Si |
Mn |
S |
P |
Сr |
Ni |
Al |
Fe |
Ti |
| Min |
– |
0.90 |
– |
– |
– |
20.00 |
Rest |
– |
– |
– |
| Max |
0.10 |
1.50 |
0.70 |
0.02 |
0.03 |
23.00 |
0.20 |
1.50 |
0.30 |
PHYSICAL PROPERTIES
| Density |
Electric resistivity, 20°C |
Thermal conductivity, 20°С |
Melting point |
Max operating temperature |
Creep strength, MPa |
Magnetic properties |
| g/cm3 |
Ω mm2/m |
W/mK |
°C |
°C |
600°С |
800°С |
1000°С |
– |
| 8.30 |
1.12 |
14.60 |
1400 |
1230 |
80.00 |
15.00 |
4.00 |
nonmagnetic |
ELECTRIC PROPERTIES
| Thermal coefficient |
20 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
1000 |
1100 |
1200 |
| Кt |
1.00 |
1.006 |
1.015 |
1.022 |
1.029 |
1.032 |
1.023 |
1.016 |
1.015 |
1.017 |
1.025 |
1.033 |
1.04 |
PRODUCT RANGE
| Form |
Diameter, mm |
Thickness, mm |
Width, mm |
Finish |
| Wire |
0.018 – 12.00 |
* |
* |
drawn, polished, oxidized, annealed |
| Flat wire |
* |
0.05 – 0.50 |
1.00 – 6.00 |
rolled, polished, annealed, oxidized |
ANALOGUES
| W.N |
UNS |
DIN |
| 2.4869 |
N06003 |
NiCr 8020 |
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