Digging Dreams, Building Futures

Have anything to ask ?

+86 189 3070 0197

Blast furnace mullite bricks

Product Description

Raw materials and processes: blast furnace with mullite brick artificial melting or sintered mullite raw materials as the main raw material, the high-pressure molding, high temperature sintering, the main mineral composition is mullite.
Features: The product has a low porosity, load softening point, high creep resistance and good resistance to chemical erosion and other characteristics.
Applications:It is a large blast furnace with high-level “ceramic cup” one of the materials, but also hot stoves and other industrial furnace with high-grade refractory materials.

Item Mullite brick Sillimanite brick Composite brown corundum brick
Al2O3%                  ≥ 70 55 75
Fe203%                  ≤ 0.8 1.5 SiC, 10
Degree of fire resistance℃                ≥ 1800 1800 1800
Refractoriness under 0.2MPa load℃≥ 1650 1550 1700
Linear change on reheating %1500 ℃x2h 0~0.4 0~0.4 ±0.2
Apparent porosity %               ≤ 18 17 18
Cold compressive strength MPa         ≥ 100 80 80
Stability of thermal shock resistance 1100 ℃water cooling 25