The main applications of Cr20Ni80 strip material

Cr20Ni80 strip material, as a high-resistance electrothermal alloy material, is widely used in various fields due to its stable microstructure, excellent high-temperature mechanical properties, and good workability. Its main applications are as follows:

Industrial Heating Equipment

It is suitable for use as heating elements in industrial electric furnaces and high-temperature heat treatment furnaces (e.g., carburizing furnaces, bell-type furnaces, ammonia decomposition furnaces). With its high-temperature stability (capable of continuous operation up to 1,200°C), resistance to surface oxidation, and superior hot mechanical performance, it excels in smelting and sintering furnaces in industries such as metallurgy, glass, and ceramics, offering long service life and high reliability.

Household Appliances

It serves as a core material for heating components in household appliances such as electric ovens, water heaters, electric irons, and ironing machines, primarily used in heating elements operating at temperatures below 1,000°C. Its stable resistivity and good cold plastic deformation ensure efficient heating and long-term safety in daily use.

Electrical and Electronic Components

It is used to manufacture resistance strips for high-quality resistance boxes and precision resistance components. Owing to its stable resistivity and small temperature coefficient, it maintains consistent resistance characteristics across varying temperature environments, making it ideal for electronic devices requiring high-precision resistors.

Aerospace and Automotive Industries

In aerospace, it is applied to high-temperature electrothermal components such as aircraft de-icing systems and rocket engine test stands. In the automotive sector, it is used in electric vehicle battery preheating systems and diesel particulate filter (DPF) regeneration heaters, leveraging its high-temperature resistance and corrosion resistance to ensure stable equipment operation.

Laboratory and Special Equipment

It functions as heating wires for laboratory equipment like muffle furnaces and tube furnaces, meeting requirements for precise temperature control and clean environments. Additionally, it can be fabricated into high-temperature mesh belts, firing racks, and other heat-resistant steel structural components, which are suitable for high-temperature working scenarios due to their stable microstructure and strong deformation resistance.