Products

Brief Introduction

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
 


Sialon Bonded SiC bricks and Corundum bricks