Cr20ni30 Heating Resistance Wire
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. Ni35Cr20 is used for a wide
range of electric heating elements in domestic appliances.
Electric Furnace Heating Elements
Cr20Ni30 resistance wire is widely used in manufacturing electric
furnace heating elements such as furnace wires and heaters. It can
work stably at high temperatures and provide uniform heat output,
making it suitable for melting metals or heating other materials.
Home Appliances
Cr20Ni30 resistance wire is used to manufacture electric heating
elements in home appliances such as electric kettles, electric
ovens, and electric blankets. These elements can maintain stable
temperature and power output over extended periods.
Industrial Heaters
Cr20Ni30 resistance wire is used in industrial heaters such as hot
air guns and heating plates. They are used in industrial production
to heat liquids, gases, or solid materials and offer a long service
life and corrosion resistance.
Specialized Heating Equipment
Cr20Ni30 resistance wire can also be used in specialized heating
equipment such as hot water boilers and industrial ovens. These
devices require precise temperature control within different
temperature ranges, and Cr20Ni30 resistance wire can meet these
requirements.
Nickel-chromium alloy performance tables
| Performance material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
|---|
| Composition | Ni | 90 | Rest | Rest | 55.0～61.0 | 34.0～37.0 | 30.0～34.0 |
| Cr | 10 | 20.0～23.0 | 28.0～31.0 | 15.0～18.0 | 18.0～21.0 | 18.0～21.0 |
| Fe | -- | ≤1.0 | ≤1.0 | Rest | Rest | Rest |
| Maximum temperature℃ | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Meltiing point ℃ | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 |
| Density g/cm3 | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 |
| Resistivity μΩ·m,20℃ | -- | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 |
|
| Elongation at rupture | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
| Specific heat J/g.℃ | -- | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 |
|
| Thermal conductivity KJ/m.h℃ | -- | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
|
| Coefficient of lines expansion a*10-6/(20～1000℃) | -- | 18 | 17 | 17 | 19 | 19 |
|
|
| Micrographic structure | -- | Austenite | Austenite | Austenite | Austenite | Austenite |
| Magnetic properties | -- | Nonmagnetic | Nonmagnetic | Nonmagnetic | Weak magnetic | Weak magnetic |
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