Cr20ni80 Heating Resistance Wire
In resistance heaters, Cr20Ni80 resistance wire is a commonly used heating element material. It is composed of 20% chromium and 80% nickel, with excellent electrical resistance characteristics and high temperature stability, suitable for various heating applications.
Corrosion Resistance
Cr20Ni80 resistance wire exhibits excellent corrosion resistance, capable of withstanding corrosion from various aggressive media in chemical equipment, including acids, alkalis, and salts.
High Temperature Resistance
The resistance wire can work stably at high temperatures for prolonged periods, maintaining its resistance characteristics and mechanical properties, suitable for heating and temperature control in high-temperature chemical processes.
Chemical Stability
Cr20Ni80 resistance wire possesses good chemical stability, resistant to the effects of chemical substances, making it suitable for long-term use in chemical equipment.
Uniform Heating
Using Cr20Ni80 resistance wire as heating elements in chemical equipment ensures uniform temperature distribution, ensuring process stability and quality.
Application Areas
- Cr20Ni80 resistance wire is commonly used in heaters, heating jackets, heating tubes, and other components in chemical equipment, used for heating reactors, evaporators, dryers, and other equipment.
- In chemical production processes, the widespread application of Cr20Ni80 resistance wire plays a vital role in improving production efficiency and product quality.
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 | -- | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 |
| μΩ·m,20℃ |
| Elongation at rupture | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
| Specific heat | -- | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 |
| J/g.℃ |
| Thermal conductivity | -- | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
| KJ/m.h℃ |
| Coefficient of lines expansion | -- | 18 | 17 | 17 | 19 | 19 |
| a*10-6/ |
| (20～1000℃) |
| Micrographic structure | -- | Austenite | Austenite | Austenite | Austenite | Austenite |
| Magnetic properties | -- | Nonmagnetic | Nonmagnetic | Nonmagnetic | Weak magnetic | Weak magnetic |
The Form we could offer
| Size Range | |
| Wire | dia 0.03-7.5mm |  |
| dia 8.0-12.0mm |  |
| Ribbon | (0.05-0.35)*(0.5-6.0)mm |  |
| Strip | (0.50-2.5)*(5-180)mm |  |
| Rod | 8-50mm |  |
