// SPEC · Refractory Bricks
Corundum-Mullite Brick Al2O3 72%
Corundum-Mullite Composite Brick Al2O3 72% combines exceptional thermal shock resistance with high-temperature structural stability for blast furnace hot blast stoves, ceramic tunnel kilns, and petrochemical cracking furnace linings.
// Key Features
- Excellent thermal shock resistance with low thermal expansion coefficient
- High refractoriness under load ≥1620°C for sustained structural integrity
- Good resistance to acid slag and CO reducing atmosphere attack
- Low creep rate at high temperatures ensuring long-term dimensional stability
// Technical Specifications
| Al2O3 (%) | ≥72 |
| Fe2O3 (%) | ≤0.5 |
| Apparent Porosity (%) | ≤20 |
| Cold Crushing Strength (MPa) | ≥100 |
| Refractoriness Under Load (°C) | ≥1620 |
// Applications
Blast furnace hot blast stove dome and combustion chamber wallCeramic tunnel kiln car decking and sidewall liningPetrochemical ethylene cracking furnace radiant wallSoaking pit furnace hearth and side wall liningGlass batch preheater high-temperature zone refractory
// Quick Specs
Max Temperature1650°C
Thermal Conductivity3.0 W/(m·K) at 1000°C
Density2.75 g/cm³
StandardGB/T 2988
// Get Pricing
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