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General Information
Fireclay bricks are made from clinker clay. The alumina content ranges from 36% to 48%.
Feature
Low thermal conductivity
High refractoriness
High mechanical strength
Excellent thermal shock resistance
Application
Fireclay bricks are commonly applied in blast furnace, hot blast furnace, teeming ladle, glass furnace, etc.
Item | Index | |||
SK-30 | SK-32 | SK-34 | SK-35 | |
AL2O3 % | 30 | 35 | 38 | 45 |
Fe2O3 % | 2.5 | 2.5 | 2 | 2 |
Refractoriness(SK) | 30 | 32 | 34 | 35 |
Refractoriness Under Load, 0.2MPa, (°C ) | 1250 | 1300 | 1350 | 1400 |
Apparent Porosity (%) | 22-26 | 22-26 | 20-24 | 20-22 |
Bulk Density (g/cm³) | 1.9-2.0 | 1.95-2.1 | 2.1-2.2 | 2.15-2.22 |
Cold Crushing Strength (MPa) | 20 | 25 | 25 | 30 |
Thermal Expansion at 1000°C (%) | 0.8 | 0.6 | 0.6 | 0.5 |
Note:
