What Is Refractory

A class of inorganic non-metallic materials with a fire resistance of not less than 1580 ℃. Fire resistance refers to the Celsius temperature at which the conical sample of refractory material can resist the action of high temperature without softening and melting under no load. However, the definition of refractoriness alone cannot fully describe refractory materials, and 1580 ℃ is not absolute. It is now defined as refractory materials whose physical and chemical properties allow them to be used in high temperature environment. Refractory materials are widely used in metallurgy, chemical industry, petroleum, machinery manufacturing, silicate, power and other industrial fields, with the largest consumption in the metallurgical industry, accounting for 50% - 60% of the total output.