High-Performance Cr20Ni80 Resistance Wire For Household And
Industrial Appliances
Introduction:
Cr20Ni80 nickel-chromium alloy wire is a high-performance
resistance electric heating alloy, mainly composed of 20% chromium
and 80% nickel, with high resistivity, good oxidation resistance,
high temperature resistance and excellent high temperature
stability. Its resistivity is about 1.09μΩ·m at 20℃, and it
increases linearly with the increase of temperature, which can
effectively convert electrical energy into thermal energy. The
melting point of this alloy is about 1400℃, and the maximum
operating temperature can reach 1200℃. It can still maintain stable
resistance value and mechanical properties in high temperature
environment.
Due to its excellent performance, Cr20Ni80 alloy wire is widely
used in the fields of industry and household appliances, including
electric heating elements, heaters, heat treatment equipment,
electric furnace wire, ceramic heaters, etc. In the home
environment, it is used to manufacture heating elements for
electric ovens, electric water heaters, hair dryers and other
equipment, which can ensure the safety and efficiency of the
equipment in long-term use.
| Performance material | Cr10Ni90 | Cr20Ni80 | Cr30Ni70 | Cr15Ni60 | Cr20Ni35 | Cr20Ni30 |
| Composición | 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 |
| Temperatura máxima℃ | 1300 | 1200 | 1250 | 1150 | 1100 | 1100 |
| Punto de fusion ℃ | 1400 | 1400 | 1380 | 1390 | 1390 | 1390 |
| Densidad g/cm3 | 8.7 | 8.4 | 8.1 | 8.2 | 7.9 | 7.9 |
| Resistividad μΩ·m,20℃ | 0.76±0.05 | 1.09±0.05 | 1.18±0.05 | 1.12±0.05 | 1.00±0.05 | 1.04±0.05 |
| Alargamiento a la ruptura | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 | ≥20 |
| Calor especifico J/g.℃ | － | 0.44 | 0.461 | 0.494 | 0.5 | 0.5 |
| Conductividad térmica KJ/m.h℃ | － | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 |
| Coeficiente de expansión de líneas a×10-6/(20～1000℃) | － | 18 | 17 | 17 | 19 | 19 |
| Estructura micrográfica | － | Austenite | Austenite | Austenite | Austenite | Austenite |
| Propiedades magnéticas | － | Nonmagnetic | Nonmagnetic | Nonmagnetic | Weak magnetic | Weak magnetic |
| Form | Specification |
| Wire | Diameter=0.025mm~8mm |
| Flat wire | Width=0.40~6.0mm | Thick=0.03~0.50mm |
| Strip | width=8~250mm | Thick=0.05~3.0mm |
| Bar | Diameter=8~100mm | Long=50~1000 |
Application fields:
Electric kettles, ovens, electric stoves: Cr10Ni90 wire is used as
heating elements to provide fast and uniform heating effects.
Hair dryers, hair curlers: used in small heating devices to ensure
efficient heat conversion.
Electric blankets, heating pads: provide stable heat output to
ensure long-term use.
Industrial furnaces, heat treatment equipment: used for
high-temperature heating elements, able to maintain stable
performance under extreme temperatures.
Chemical reactors, evaporators: suitable for corrosive
environments, providing reliable heating solutions.
Laboratory equipment: such as heating furnaces, test furnaces,
providing precise temperature control.
Service:
We provide comprehensive nickel-chromium alloy technical support
and services to ensure the normal operation of our customers'
products. Our experienced technical team will provide customers
with various services such as installation, maintenance,
troubleshooting, and answer any questions they may have about the
product. We also provide customized solutions, designing and
manufacturing nickel-chromium alloy products according to customer
needs. We are committed to ensuring customers are satisfied with
their purchases, providing timely support and building great
relationships.
contact us
email:victory@dlx-alloy.com
Oem service:
Welcome customized size
We are experience factory for OEM&ODM service
Size dimension range:
Wire: 0.01-10mm
Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.05*5.0-5.0*250mm
NiCr series: Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30
FAQ:
1. What material is Cr20Ni80?
Cr20Ni80 is a nickel-chromium alloy, the main components of which
are 20% chromium and 80% nickel, and is used for high-temperature
electric heating elements.
2. What is the resistivity of Cr20Ni80?
The resistivity is about 1.1 Ω·mm²/m (20℃), which is suitable for
making electric heating wires.
3. What is the maximum operating temperature of Cr20Ni80?
The maximum operating temperature can reach 1200℃, but it is
recommended to be below 1000℃ for long-term use.
