Which of the following materials is widely used for high-temperature heating (1500°C) applications such as in industrial furnaces and kilns?

For high-temperature heating applications, such as those in industrial furnaces and kilns that reach temperatures around 1500°C, Silicon Carbide (SiC) is widely used.

• Silicon Carbide (SiC): It is a ceramic material that can withstand extremely high temperatures, making it ideal for applications in furnaces and kilns where temperatures reach up to 1500°C or even higher. It also has excellent thermal conductivity and resistance to thermal shock.
• Nickel-Chromium Alloy (NiCr): While nickel-chromium alloys are also used in heating applications, they are typically used for lower temperature ranges, generally up to around 1200°C.
• Stainless Steel: Stainless steels are generally not used for heating elements in such high-temperature applications because they lose their mechanical properties and become prone to oxidation at temperatures above 800-1000°C.
• Bronze: Bronze is not suitable for high-temperature heating applications as it has a relatively low melting point compared to the other materials listed.