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Cr20Ni80 Resistance Heating Wire High Oxidation Resistant Industrial Grade
Discover premium Cr20Ni80 Resistance Heating Wire, a high-performance nickel-chromium alloy (80% Ni, 20% Cr) engineered for superior oxidation resistance and reliable operation in demanding industrial environments. This industrial-grade nichrome heating wire delivers consistent electrical resistivity, rapid heat generation, and exceptional durability at temperatures up to 1200°C (2190°F).
- Overview
- Specification
- Applications
- FAQs
- Recommended Products
Overview of Cr20Ni80 Nichrome Heating Wire 80/20 :
Elevate your heating solutions with Cr20Ni80 Resistance Heating Wire — a premium nickel-chromium alloy renowned for its high oxidation resistance and robust performance in extreme conditions. Also known as Nichrome 80/20 or NiCr 80/20 wire, this industrial-grade heating wire is specifically formulated to provide stable electrical resistance, fast thermal response, and long service life in high-temperature environments.
Whether you're designing electric furnaces, kilns, or custom heating elements, our Cr20Ni80 wire combines excellent formability, weldability, and corrosion resistance to meet the rigorous demands of modern industrial processes. With a maximum continuous operating temperature of 1200°C and melting point around 1400°C, it ensures reliable, energy-efficient heat generation while resisting degradation from oxidation and thermal shock.
Features of Cr20Ni80 Resistance Heating Wire:
✔High-Temperature Resistance and Oxidation Protection
The Cr20Ni80 nichrome heating wire withstands continuous operation up to 1200°C (2192°F) with a melting point around 1400°C. Its chromium content creates a self-protecting oxide layer, preventing rapid degradation in air.
✔Stable Electrical Resistivity for Efficient Heating Elements
Engineered for consistent resistance across temperature fluctuations, this 80/20 nickel chromium resistance wire delivers reliable heat output. High resistivity allows compact coil designs while minimizing power consumption in resistance heating applications.
✔Superior Corrosion and Oxidation Resistance
Ideal for harsh environments, the nichrome resistance heating alloy resists corrosion and maintains structural integrity, outperforming many alternatives in high-heat, oxidative conditions.
✔Excellent Ductility and Formability
Easily wound into coils, spirals, or custom shapes for heating elements without cracking. Non-magnetic properties suit sensitive electronic or medical applications.
| 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 | |
| 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 | -- | 18 | 17 | 17 | 19 | 19 | |
| Micrographic structure | -- | Austenite | Austenite | Austenite | Austenite | Austenite | |
| Magnetic properties | -- | Nonmagnetic | Nonmagnetic | Nonmagnetic | Nonmagnetic | Nonmagnetic |
Applications of Cr20Ni80 Nichrome Heating Wire 80/20 :
The Cr20Ni80 nichrome heating wire excels in a broad range of high-temperature resistance heating applications, including:
- Industrial Furnaces and Kilns: Ideal for heat treating, ceramics, glass, steel, and metallurgical processes requiring stable high-temperature performance up to 1200°C.
- Electric Heating Elements and Appliances: Used in toasters, hair dryers, ovens, space heaters, and tubular heating elements for reliable, quick-heating performance.
- Wire-Wound Resistors and Precision Heating: Supports laboratory equipment, vacuum packing machines, and specialized electronic or scientific heating components.
- Aerospace, Automotive, and Manufacturing: Suitable for custom heating coils, radiant heaters, and process heating equipment demanding oxidation-resistant, high-resistivity wire.
FAQ on 80/20 Nickel Chromium Resistance Wire:
1.What is Cr20Ni80 Resistance Heating Wire made of?
Cr20Ni80 is a nickel-chromium alloy typically composed of approximately 80% Nickel and 20% Chromium, offering the optimal balance for high resistivity and oxidation resistance.
2.What is the maximum operating temperature for Cr20Ni80 nichrome wire?
It supports continuous operation up to 1200°C (2190°F) with a melting point around 1400°C, making it suitable for most industrial high-temperature heating applications.
3.How does Cr20Ni80 compare to other resistance heating wires?
It provides superior oxidation resistance and stability compared to many alternatives, with excellent performance in cycling conditions. It is often preferred over lower-nickel variants for demanding industrial use.
4.Is Cr20Ni80 wire suitable for custom coil forming?
Yes, it features good ductility, workability, and weldability, allowing easy forming into coils, spirals, or complex shapes for heating elements.
