Mullite brick

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.

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

Zhengzhou Shennan Refractory Co.,Ltd are professional in producing mullite brick.Our products with the advantage of following.

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.