Mullite Brick

Mullite Brick

Al2o3: ≥72%

Fe2o3: ≤0.8%

Bulk density : ≥2.55g/cm3

Apparent porosity : ≤17%

Cold crushing strength: ≥80Mpa

Thermal shock resistance: Excellent

Mullite bricks are high-alumina refractories with mullite (3Al2O3·2SiO2) as the main crystal phase. Generally, the alumina content is between 70% and 80%. Mullite Refractory bricks have high refractoriness, which can reach above 1790℃. The starting temperature of load softening is 1600～1700℃. It has the good thermal shock resistance with cold crushing strength of 70～260MPa. There are two types of mullite refractories: sintered mullite bricks and fused mullite bricks. If the Al2O3 content in refractory brick is more than 80%, we call it as corundum mullite brick. If there is ZrO2 in the brick, we call it as Zircon Mullite Brick.

As a professional mullite bricks manufacturer, we have exported different mullite refractory bricks to more than 30 countries. Please kindly read the following more information and make Inquiry.

Scope of application

• Mullite bricks are widely used in glass furnaces,hot blast stove and etc

Advantage

• Low thermal expansion rate

• Strong resistance to corrosion by metallurgical slag and various glass liquids

• High temperature wear resistance

• High temperature thermal stability, anti-corrosion of glass liquid

• Long service lifetime