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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