Electric Heating Alloy Cr20Ni80
Cr20Ni80, a classic nickel-chromium heating alloy, boasts key advantages in electrothermal stability, high-temperature resistance, and processability, making it suitable for various heating applications. Specifically:
1. Stable and Controllable Electrothermal Performance: With a resistivity of approximately 1.09 - 1.14 μΩ·m at room temperature and a temperature coefficient of resistance of only approximately +0.00013/°C, resistance fluctuates minimally with temperature changes, ensuring stable power output and preventing sudden temperature fluctuations. This makes it suitable for both industrial and domestic heating applications.
2. Excellent High-Temperature Resistance and Oxidation Resistance: It can operate at temperatures up to 1200°C while maintaining good mechanical strength and strong creep resistance, making it resistant to deformation and breakage. Furthermore, a dense chromium oxide film forms on the surface at high temperatures, effectively resisting oxidation and corrosion, significantly extending the lifespan of the heating element.
3. Strong adaptability to processing and assembly: Excellent cold and hot working performance, easily processed into various forms such as wires, strips, and foils. It can also be manufactured into different components such as heating elements and heating wires through stamping and bending. Furthermore, it has excellent weldability, allowing assembly with various parts. Different specifications can also be customized to meet complex heating structure designs.
4. Wide range of applications and high adaptability: Suitable for high-temperature conditions such as industrial electric furnaces and heat treatment equipment, it can also be used to manufacture heating elements for household appliances such as electric ovens and irons, and can be used for special high-temperature heating components in the aerospace field. Compared with similar alloys such as FeCrAl, it has superior oxidation resistance, longer service life, and outstanding overall cost-effectiveness.
