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Ni80cr20 Ni80 Nicr 8020 Nichrome Wire For Heating Elements Nickel Alloy Wire
Product Introduction
Cr20Ni80 Wire is a high resistance electric heating alloy wire, mainly composed of 20% chromium (Cr) and 80% nickel (Ni), with high resistivity, excellent oxidation resistance and high temperature stability. Resistivity: At 20°C, the resistivity is usually 1.09-1.20 μΩ·m. Density: 8.4 g/cm³. Melting point: about 1400℃.
Cr20Ni80 Wire is widely used in electric heating equipment and high temperature industrial fields, suitable for manufacturing electric heating elements, resistors, thermocouples and high temperature heating equipment components. It is particularly suitable for periodic heat treatment furnaces with working temperatures below 1000℃, such as carburizing furnaces, bell furnaces, ammonia decomposition furnaces, etc. In addition, it is also used for high-grade electric heating tubes and high-grade household electric heaters. Due to its excellent oxidation resistance and corrosion resistance, Cr20Ni80 Wire performs well in high temperature working fields such as metallurgy, glass industry, aerospace, etc.
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
Parameter
Resistivity: At 20°C, the resistivity is usually 1.09-1.20 μΩ·m.
Density: 8.4 g/cm³.
Melting point: about 1400°C.
Thermal conductivity: about 15 W/m·K (at 20°C).
Linear expansion coefficient: 14-18×10^-6/K in the range of 20°C to 1000°C.
Tensile strength: not less than 650 MPa.
Elongation: ≥20%.
| 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 |
Specific Applications
Advantages and Characteristics
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Related Questions and Answers
Q: What is the resistivity of Cr20Ni80 wire?
A: The resistivity of Cr20Ni80 wire is about 1.09-1.20 μΩ·m (at 20°C).
Q: What is the operating temperature range of Cr20Ni80 wire?
A: The operating temperature range is 0°C to 1200°C, and the maximum operating temperature can reach 1250°C.
Q: What is the corrosion resistance of Cr20Ni80 wire?
A: Cr20Ni80 wire has good oxidation resistance and corrosion resistance at high temperatures, and its oxide film is stable in high temperature environments, which can effectively prevent oxidation and corrosion.
Q: What is the tensile strength of Cr20Ni80 wire?
A: The tensile strength of Cr20Ni80 wire is usually between 650-800 MPa.
Q: What is the density of Cr20Ni80 wire?
A: The density is about 8.4 g/cm³.
Q: What are the main application areas of Cr20Ni80 wire?
Answer: Cr20Ni80 wire is widely used in electric heating elements, resistance furnaces, heat treatment equipment, electric furnace heating elements, heat treatment furnaces, high temperature heating devices and other fields.
