In industrial furnace selection, the material of electric heating alloy is a crucial factor that directly determines the equipment’s efficiency, service life, and long-term operational costs. For industrial furnace operators and procurement personnel, choosing the right electric heating alloy can not only ensure stable production but also significantly reduce maintenance and replacement expenses. Nickel-chromium alloy (NiCr), such as the Cr20Ni80 grade, and iron-chromium-aluminum alloy (FeCrAl), including HRE, SGHT, and SGHYZ, are the two most mainstream options in the market. Beijing Shougang Gitane, a professional electric heating alloy supplier, is here to help you clearly distinguish the differences between these two types of alloys, so you can make accurate choices that fully match your industrial furnace’s specific working conditions and production needs.
Nickel-chromium alloy (NiCr) is well-known for its outstanding core advantages, including high ductility, easy fabrication, and excellent thermal shock resistance. It maintains stable performance from room temperature up to 1100℃, making it particularly suitable for industrial furnaces that require frequent start-stop cycles and have complex structures, such as laboratory furnaces, small-scale heat treatment furnaces, and precision heating equipment. Shougang Gitane’s nickel-chromium alloy products are made of high-purity raw materials, and the Cr20Ni80 grade electric heating wire and strip stand out with stable resistivity and excellent weldability. These characteristics make it an ideal choice for medium and low-temperature precision temperature control applications, where consistency and reliability are key to ensuring product quality.
In contrast, iron-chromium-aluminum alloy (FeCrAl) offers more prominent advantages in high-temperature environments, including excellent high-temperature resistance, long service life, and high cost-effectiveness. Its maximum operating temperature can reach up to 1420℃, which is much higher than that of nickel-chromium alloy, making it suitable for harsh high-temperature working conditions. Shougang Gitane’s high-performance FeCrAl products, including SGHT (made by ODS powder metallurgy process), SGHYZ, and HRE, form a dense aluminum oxide layer on the surface during use, which effectively enhances their oxidation resistance and creep resistance. As a result, their service life is 3 to 5 times longer than that of ordinary nickel-chromium alloys, while the price is more competitive. These products are perfectly suitable for high-temperature industrial furnaces operating between 1000℃ and 1400℃, such as sintering furnaces, melting furnaces, and continuous heat treatment furnaces, which are widely used in various industrial fields.
To help you make the most suitable choice, here are clear selection tips: if your industrial furnace operates at a temperature ≤1000℃ and requires frequent start-stop cycles, nickel-chromium alloy is the optimal choice; if your furnace operates at a temperature ≥1000℃ and needs long-term continuous operation, Shougang Gitane’s FeCrAl alloy products (SGHT/SGHYZ/HRE) are highly recommended. As a professional electric heating alloy supplier with rich experience, Shougang Gitane provides a full range of nickel-chromium and iron-chromium-aluminum products, covering from standard grades to high-end ODS powder metallurgy materials. We also offer customized wire and strip products according to your specific requirements, helping your industrial furnaces operate efficiently and stably, and ultimately reducing your long-term production costs.