High Alumina Brick Sk 38

High Alumina Brick We also provide high alumina brick. Refractoriness under load is normally above 1420~1550°C that is higher than the fireclay brick and it increases along with the AL2O3 content. High alumina brick have very good ability of anti-acidity, anti-metal fluid corrode and anti-oxidation. High alumina brick are used normally in industry furnaces such as Blast furnace, hot-blast furnace. Description: Dita high alumina bricks are produced with selected bauxite chamotte by advanced process and strict quality control. The main mineral components are corundum and mullite phases. It features excellent high temperature mechanics and chemical corrosion resistance. Features 1.Resisting high temperature2.Great bulk density3.Low iron content4.Good eroding resistance Applications: 1. Steel furnaces2. Iron making furnaces3. Glass kiln4. Ceramic tunnel kiln5. Cement kiln 6. Blast furnace, hot-blast furnace.  High Alumina Brick Technical Specification:ItemIndexInternational code   nameSK35SK36SK37SK38SK40Chinese code nameLZ-48LZ-55LZ-65LZ-75LZ-80Al2O3 min %4855657580Fe2O3 max %22222Refractoriness oC min.Refractoriness under Load C min.Permanent Linear Change % 1450 C×2h1500 C×2h1500 C×2h1500 C×2h1500 C×2h+0.1~-0.4+0.1~-0.4+0.1~-0.4+0.1~-0.4+0.1~-0.4Apparent Porosity max. %2222232321Cold Crushing Strength mim.3944495465 

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