In the steel industry, thermal insulators are mainly used to improve the efficiency, durability and strength of equipment and processes. Due to their high temperature resistance properties when working with materials up to 1200/1300 degrees, composite materials offer significant advantages over traditional materials. Here are some of the main applications of composite materials in the steel industry, furnace linings, transport rollers, rolling cylinders, protective coatings. The adoption of composite materials in the steel industry is driven by the need to improve operational efficiency, reduce maintenance costs and increase equipment durability. Continuous innovation in composite materials allows the development of more advanced and customised solutions for the specific needs of the steel industry.