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Sialon Bonded SiC Bricks and Corundum Bricks
Sialon bonded refractory brick takes advantages of both Sialon and SiC/corundum, i.e. high strength, outstanding resistance to thermal shock, oxidation and alkali. It is becoming an alternative product for latest lining design of blast furnace.
| Index | Si3N4 Bonded SiC for Blast Furnace |
Sialon Bonded SiC For Blast Furnace |
Sialon Bonded Corundum For Blast Furnace | |
| SiC % | ≥70 | ≥70 | ≥71 | ≥80 |
| Si3N4 % | ≥22 | ≥20 | ||
| Si % | ≤1.0 | |||
| Al2O3 % | ≥5.0 | |||
| N % | ≥5.5 | ≥5.0 | ||
| Fe2O3 % | 0.7 | 0.7 | ||
| Apparent Porosity % | ≤18 | ≤19 | ≤16 | ≤15 |
| Bulk Density g/cm3 | ≥2.60 | ≥2.58 | ≥2.65 | ≥3.15 |
| Cold Crush Strength MPa | ≥150 | ≥150 | ≥150 | ≥135 |
| Bending Strength(1400℃x0.5h) MPa | ≥50 | ≥40 | ≥45 | ≥22 |
| Bending Strength at room Temp. MPa | ≥40 | ≥30 | ||
|
Alkali Resistance % (K2CO3 930℃ x 3h x 2Times ) |
±5.0 |
0~+5.0 |
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