November 17, 2025
Against the backdrop of continuous upgrades in high-temperature industrial systems, mullite refractory bricks, as a lightweight, high-strength refractory material, are becoming a key choice for industries such as steel, ceramics, glass, and power.
As global industrial enterprises increasingly pursue higher thermal efficiency and production safety, traditional refractory materials face challenges in terms of thermal shock stability, erosion resistance, and mechanical impact resistance. Mullite refractory bricks, with their high mullite content, low thermal conductivity, and excellent slag resistance, perform exceptionally well in harsh operating conditions and are considered a core material for next-generation kilns and industrial furnace linings.
Technological Breakthroughs Drive Industry Transformation
In recent years, refractory material manufacturers have adopted advanced alumina raw material formulation design, high-temperature tunnel kiln firing processes, and microporous structure control technology in mullite brick production, further improving the product's performance in terms of high-temperature resistance (up to 1600℃), alkali erosion resistance, and thermal shock stability.
An industry expert pointed out, "With the ever-increasing operating temperatures in steelmaking, glassmaking, and high-temperature kilns, traditional refractory bricks can no longer meet the demands of these conditions. The new generation of Mullite Refractory Bricks, while maintaining lightweight construction, can sustain structural and strength stability under harsh environments, representing a key direction for the future development of high-temperature industries."
Rapid Market Demand Growth
Market data shows that the global mullite refractory brick market will maintain a growth rate of over 7% over the next five years, with explosive growth particularly in the new energy materials industry and high-end metallurgical equipment manufacturing.
Steel Industry: Used in blast furnace hot blast stoves, throats, and furnace wall areas to extend furnace life and reduce maintenance costs;
Ceramics and Glass Industry: Used in kiln car pushers and firing chamber linings to improve product sintering quality;
Power Industry: Used in CFB boilers and environmentally friendly desulfurization systems to extend equipment lifespan.
Driven by the "dual carbon goals," more companies are seeking energy-saving and environmentally friendly refractory solutions, and the energy-saving, lightweight, and customized production characteristics of Mullite Refractory Bricks are gradually gaining favor with global customers.
