Product introduction:

High alumina brick is a neutral refractory material with an alumina content of more than 48%. It is formed and calcined from bauxite or other raw materials with a high alumina content. It has high thermal stability and a refractoriness of more than 1770℃. It has good slag resistance and is used to build the lining of steelmaking electric furnaces, glass melting furnaces, cement rotary furnaces, etc. High-load soft, low-creep high-alumina bricks are advanced refractory materials made of special-grade bauxite, fused corundum, and fused mullite as the main raw materials. This product has the advantages of small high-temperature creep, strong erosion resistance, and good thermal shock stability, and is suitable for large and medium-sized hot blast furnaces.

High alumina brick grades	Aluminum carbide (Al₂O₃) content
Special high alumina bricks	75%＜Al₂O₃≤85%
First-grade high alumina bricks	70%＜Al₂O₃≤75%
Second-grade high alumina bricks	60%≤Al₂O₃＜70%
Third-grade high alumina bricks	48%＜Al₂O₃＜60%
Corundum bricks	Al₂O₃≥90%