Mullite Refractory Brick - Refractory Lining and Insulation

Among all furnace lining materials, mullite refractory brick has become a trusted choice for many industrial furnaces. Known for their ability to remain stable at temperatures above 1700 °C, these bricks not only withstand extreme heat but also help reduce energy loss by providing excellent insulation. The combination of durability, thermal efficiency and cost-effectiveness makes mullite refractory bricks one of the most reliable materials for modern furnace construction and maintenance.

Mullite Refractory Bricks

$Mullite Refractory Brick$

Al₂O₃

≥70-75%

SiO₂

≤23-25

Bulk Density

2.6-2.7g/cm³

Cold Crushing Strength

≥100MPa

Refractoriness

≥1680°C

Free Sample

Yes

Application

Refractory Lining and Insulation

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Technical Data of KERUI Mullite Refractory Brick

Item		MLS-75	MLS-70
Al₂O₃, %	≥	75	70
SiO₂, %	≤	23	25
Fe₂O₃, %	≤	0.4	0.4
Bulk Density, g/cm³	≥	2.7	2.6
Apparent Porosity, %	≤	18	18
Cold Crushing Strength, MPa	≥	100	100
0.2MPa Refractoriness Under Load, ℃	≥	1680	1680

Applications of Mullite Refractory Brick

Mullite brick is mainly used in hot blast furnace tops, blast furnace shafts and bottoms, glass melting furnace regenerators, ceramic sintering kilns, dead-end furnace linings in petroleum cracking systems, etc.

For Better Service, We Need to Know:

1.Target Refractory Product Type: Grade/Size/Shape/Temperature, etc.;

2.Application and Operating Requirements: Cement Kiln Lining/ Permanent Ladle Layer/Acid Resistance, etc.;

3.Required Quantity and Procurement Time: eg. Buy 1 ton and Procurement in 3 Months;

4.Your Company Type: End User/Trader/Contractor...;