DESCRIPTION
Ni30Cr20 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.
Ni30Cr20 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
| Nom. composition |
С |
Si |
Mn |
S |
P |
Сr |
Ni |
Al |
Fe |
| Min |
– |
1.00 |
– |
– |
– |
18.00 |
30.00 |
– |
Bal. |
| Max |
0.10 |
2.00 |
1.00 |
0.02 |
0.03 |
21.00 |
34.00 |
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 |
– |
| 7.90 |
1.06 |
13.00 |
1390 |
1100 |
100.00 |
20.00 |
4.00 |
nonmagnetic |
ELECTRIC PROPERTIES
| Thermal coefficient |
20 |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
1000 |
1100 |
| Кt |
1.00 |
1.023 |
1.052 |
1.079 |
1.103 |
1.125 |
1.141 |
1.158 |
1.173 |
1.187 |
1.201 |
1.214 |
PRODUCT RANGE
| Form |
Thickness, mm |
Width, mm |
Finish |
| Flat wire |
0.05 – 0.50 |
1.00 – 6.00 |
rolled, polished, annealed, oxidized |
| Coil |
0.05 – 5.00 |
5.00 – 250.00 |
rolled, polished, annealed, oxidized |
ANALOGUES
| W.N |
UNS |
DIN |
| 1.4860 |
– |
NiCr 3020 |
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