High Alumina Refractory Brick

We are a professional manufacturer of high alumina brick in China's refractory base. Our products have been exported to many countries around the world, such as Austrilia,Canada, Germany, Japan, Turkey, US,UK, Russia, South Korea, South Africa, Saudi Arabia, philippines, Pakistan, etc. Good quality, competitive price, thinking from customer's viewpoint make our products popular.High alumina brick with the following specifications: Item:LZ-85LZ-80LZ-75LZ-65LZ-55LZ-48Al2O3 %≥85≥80≥75≥65≥55≥48Apparent porosity %≤23≤22≤23≤23≤22≤22Cold crushing strength Mpa≥55≥55≥53.9≥49≥44.1≥39.2Refractoriness °c≥1790≥1790≥1790≥1790≥1770≥1750Refractoriness under loadin 0.2MPa≥1550≥1530≥1520≥1500≥1450≥1420Permanent linear change1500°c×2h-0.4 0.1-0.4 0.1-0.4 +0.1-0.4 0.1-0.4 0.11450°c×2h-0.4 0.1High alumina brickrefractoriness under load is normally around 1420 1550°Cwhichis higher than fireclay brick and it increases along with the AL2O3 content increase. High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation. High alumina brickis mainlyusedin industry furnaces such as Blast furnace, hot-blast furnace and EAF etc.