High Refractoriness Hot Blast Stove Silica Brick

Silica brick is an acid refractory material mainly made of natural silica sand, and its SiO2 content should be above 95%.Silica brick has high temperature and volume stability, chemical corrosion resistance,and small bulk density.It is widely used in hot blast furnace and it is mainly used in high temperature sections of the checker chamber in hot blast stoves.

High Refractoriness Hot Blast Stove Silica Brick Characteristics:
High Temperature
Good Volume Stability
Chemical Corrosion Resistance

High Refractoriness Hot Blast Stove Silica Brick Application:
It is widely used in hot blast furnace and it is mainly used in high temperature sections of the checker chamber in hot blast stoves.

High Refractoriness Hot Blast Stove Silica Brick Technical Data Sheet:

Item	Wall Brick/Dome Brick	Checker Brick
SiO2 (%)	≥95	≥95
Al2O3 (%)	≤1.0	≤1.0
Fe2O3 (%)	≤1.0	≤1.0
Apparent Porosity (%)	≤22	≤24
True Density (g/cm3)	≤2.33	≤2.33
Cold Crushing Strength (Mpa)	≥40	≥35
Refractoriness Under Load (0.2Mpa) (℃)	≥1650	≥1650
Residual Quartz (%)	≤1.0	≤1.0
Creep Rate 0.2Mpa (1550℃*50h) (%)	≤0.6	≤0.6
Permanent Linear Change (1450℃*2h) (%)	≤0.2	≤0.2
Thermal Expansion Coefficient (1000℃) (%)	≤1.26	≤1.26