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Properties:
•Alumina content in fireclay bricks approximate 30-42%.
•Good thermal shock and spalling resistance.
•Good resistance to abrasion and corrosion.
•Good volume stability at high temperature.
•High machanical strength.
Applications:
•Furnace construction.
•Blast furnace
•Hot blast stove.
•Coke ovens
•Gas furnace.
•Cement industry
•Glass industry
Item | Index | ||
SK-30 | SK-32 | SK-34 | |
AL2O3，%， | ≥30 | ≥38 | ≥42 |
Fe2O3，%， | ≤2.5 | ≤2.5 | ≤2.5 |
Density, g/cm3 | ≥2.0 | ≥2.15 | ≥2.2 |
Refractoriness，℃， | ≥1700 | ≥1720 | ≥1740 |
0.2Mpa Refractoriness under load，℃ | ≥1300 | ≥1320 | ≥1350 |
Liner change on reheating（1400℃，2h)，% | +0.1～-0.4 | +0.1～-0.4 | +0.1～-0.4 |
App.Porosity，% | ≤24 | ≤24 | ≤24 |
C.C.S.，Mpa | ≥25 | ≥30 | ≥35 |
