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Vacuum Heat Treatment Cr20Ni80 Nickel Chromium Strip With Resistivity 1.09+/-0.05
Product Description:
Cr20Ni80 nickel chromium alloy strip is a highly favored
high-quality material in the field of vacuum heat treatment. Its
composition contains at least 77% nickel and a certain proportion
of chromium, which gives it excellent high-temperature stability.
Its melting point can reach as high as 1400-1450 ° C, and it can
still maintain the stability and performance of its structure under
extreme heating conditions.
This type of alloy strip has good electrical resistivity, about
1.1-1.2 μ Ω m, and is suitable for various high-temperature
electric heating processing processes. Meanwhile, its strength is
also very impressive, with a tensile strength of 637MPA and a
hardness of HV400-500. Not only that, it also has a elongation rate
of over 20%, making it more resilient in processing and application
processes. In terms of heat conduction, The Cr20Ni80 alloy strip
exhibits excellent performance with a thermal conductivity of 15-20
W/mK, which is crucial for uniformly heating the sample in a
high-temperature environment.
In addition, this alloy strip provides a choice of hardness or
softness state, and can be subjected to surface treatment as
needed, such as brightening and oxidation treatment. This makes it
very suitable for various applications such as vacuum furnaces,
heat treatment rooms, temperature control systems, etc.
Overall, Cr20Ni80 nickel chromium alloy strip has become one of the
preferred materials in the field of vacuum heat treatment due to
its excellent performance characteristics, providing reliable
guarantee and flexible selection for high-temperature processing.
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: Cr10Ni90,Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30
Technical Parameters:
| Performance material | Cr20Ni80 | |
| Composición | Ni | Rest |
| Cr | 20.0～23.0 | |
| Fe | ≤1.0 | |
| Temperatura máxima℃ | 1200 | |
| Punto de fusion ℃ | 1400 | |
| Densidad g/cm3 | 8.4 | |
| Resistividad μΩ·m,20℃ | 1.09±0.05 | |
| Alargamiento a la ruptura | ≥20 | |
| Calor especifico J/g.℃ | 0.44 | |
| Conductividad térmica KJ/m.h℃ | 60.3 | |
| Coeficiente de expansión de líneas a×10-6/(20～1000℃) | 18 | |
| Estructura micrográfica | Austenite | |
| Propiedades magnéticas | Nonmagnetic | |
| 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 |
Characteristics:
Application:
Cr20Ni80 nickel chromium alloy strip plays an important role in vacuum heat treatment. Vacuum heat treatment is a heat treatment process carried out in anaerobic or low oxygen environments, usually used to improve the mechanical properties, corrosion resistance, and thermal stability of metal materials. In this process, The Cr20Ni80 alloy strip has the following key application aspects:
In summary, Cr20Ni80 nickel chromium alloy strip plays an important role in vacuum heat treatment, mainly used in heating element manufacturing, sample heating, oxidation protection, temperature control and monitoring, providing a reliable heating solution and temperature monitoring means for vacuum heat treatment.
FAQ :
Why is Cr20Ni80 nickel chromium alloy strip widely used in vacuum
heat treatment?
The Cr20Ni80 alloy strip has excellent high-temperature stability
and oxidation resistance, and can maintain stable chemical
properties in high-temperature vacuum environments. It is suitable
for heating and temperature monitoring during heat treatment.
What is its role in the manufacturing of vacuum furnace heating
elements?
Cr20Ni80 alloy strip is commonly used in the manufacturing of
heating elements for vacuum furnaces, to achieve high-temperature
treatment of materials, such as annealing, sintering, etc.
During sample heating, What are the characteristics of Cr20Ni80
alloy strip?
The Cr20Ni80 alloy strip can provide stable heating capacity,
making the temperature of the sample uniform and stable throughout
the heating process, thereby achieving the required phase
transformation or structural adjustment.
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