Product Introduction:
Fire clay brick refers to the clay products with Al2O3 content of 30%~40%.Fire clay brick can resist the erosion of acid slag and acid gas; have good thermal performance and can withstand rapid cooling and rapid heating.
Features:
1. High fire resistance.
2. Dense bulk density, low porosity,
3. Excellent creep performance at high temperature and good bulk stability.
Application:
The fire clay bricks are mainly used for heat boiler, glass kiln, cement kiln, chemical fertilizer gasification furnace, blast furnace, hot blast furnace, coking furnace and electric furnace.
Technical Properties:
Item | Common Fireclay Brick |
PN-35 | PN-40 | PN-42 |
Al2O3 / % | 35 | 40 | 42 |
Fe2O3 / % | - | - | 2.0 |
Apparent Porosity / % | 26 (28) | 24 (26) | 20 (22) |
Cold Crushing Strength / % | 30 (25) | 35 (30) | 45 (35) |
0.2 MPa Refractoriness Under Load / ℃ | 1320 | 1350 | 1400 |
Permanent Linear Change / % | 1400℃*2hr | -0.4~0.1 |
