High Purity Corundum Brick

Corundum brick has high refractoriness under load, good chemical stability, strong resistance to acidic or alkaline slag, metal, and glass liquid, etc., and has a dense structure.

Parameter of corundum bricks

Item	Index
Al₂O₃ %	≥99
SiO₂ %	≤0.15
Fe₂O₃ %	≤0.12
Bulk Density g/cm³	≥3.2
Apparent Porosity %	≤16
Cold Crushing Strength MPa	≥100
0.2Mpa Refractoriness Under Load ℃	≥1700
Permanent Linear Change Rate % 1600℃×3h	±0.2
Thermal shock resistance cycle 1100℃water cooling	≥5

Characteristics of high-purity corundum bricks

High-temperature resistance
High compressive strength
Highly dense structure
Good thermal shock resistance
Strong resistance to acid and alkali residue erosion
good chemical stability
Good resistance to metal and molten glass

Application scope of high-purity corundum bricks

Refractory materials industry: High-purity corundum bricks are treasures in the field of refractory materials. They are widely used in the lining of high-temperature industrial equipment such as furnaces, converters, electric furnaces, and crucibles, effectively ensuring long-term stable operation of equipment in high-temperature environments.

Steel smelting: In the steel smelting process, high-purity corundum bricks are an indispensable lining material. They have excellent fire resistance and corrosion resistance and can withstand harsh environments at high temperatures.

Aluminum electrolytic cell: In the aluminum electrolysis industry, high-purity corundum bricks can be used as lining materials for electrolytic cells. Because of their stability at high temperatures, they can effectively resist high-temperature erosion during the aluminum electrolysis process.

Glass furnace: High-purity corundum bricks can be used as the lining of glass furnaces. Its high melting point and excellent heat resistance enable it to withstand the corrosion of high-temperature molten glass in the glass furnace.

Chemical industry: In high-temperature, highly corrosive chemical environments, high-purity corundum bricks also play an important role and are used to manufacture the linings of reactors, catalyst carriers, and other equipment.