Corundum Mullite Brick

Corundum mullite is made of high-purity corundum ore and mullite raw materials through mixing, molding, drying, and sintering in a kiln.

Corundum mullite brick parameters

Item	Index
	GMZ-88	GMZ-85	GMZ-80	GMZ-75
Al2O3  %	≥88	≥85	≥80	≥75
Fe2O3  %	≤0.6	≤0.8	≤1.0	≤1.2
Apparent Porosity  %	≤15	≤16	≤17	≤18
Bulk Density  g/cm3	≥3.0	≥2.9	≥2.8	≥2.65
Cold Crushing Strength  MPa	≥125	≥110	≥100	≥80
0.2Mpa Refractoriness Under Load ℃	≥1700	≥1680	≥1660	≥1650
Permanent Linear Change Rate  %   1500℃×2h	±0.1	±0.1	±0.2	±0.2
Thermal Shock Resistance Cycle 1100℃ Water Cooling	≥15	≥12	≥10	≥10

Application fields

Corundum mullite bricks are widely used as lining materials and insulation materials in high-temperature kilns, heating furnaces, converters, oxidation furnaces, electric furnaces, and other equipment in metallurgy, chemical industry, building materials, electric power, and other industries. They are high-end refractory materials an important part of it.

About Rongsheng refractory supplier

Rongsheng is a professional manufacturer of refractory materials, with rich production experience and technical strength, and can provide high-quality corundum mullite bricks and other refractory bricks, unshaped refractory raw materials.
Refractory bricks are an important raw material for kiln production. At present, the hot-selling products of refractory bricks include high-alumina refractory bricks, magnesia carbon bricks, magnesia chrome bricks, fused corundum bricks, etc.

Video of corundum mullite brick

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