Brown corundum, Brown aluminium oxide
Brown corundum, also known as diamond, is a brown-brown artificial corundum made from bauxite, carbon materials and iron scraps by melting and reducing in an electric arc furnace. The main chemical composition of brown corundum is AL2O3, its content is 95.00% - 97.00%, and contains a small amount of Fe, Si, Ti and so on. Brown corundum is the most basic abrasive, because of its good grinding performance, a wide range of applications, low price, is widely used.
Brown corundum is bauxite, coke (anthracite) as the main raw materials, smelted at high temperature in the arc furnace, made of abrasives, suitable for grinding high tensile metal, such as a variety of general steel, malleable cast iron, hard bronze, etc., can also be made of high-grade refractories. Brown corundum has the characteristics of high purity, good crystallization, strong fluidity, low coefficient of linear expansion and corrosion resistance. The practice of dozens of refractory production enterprises has proved that the product has the characteristics of non-explosion, non-pulverization and non-cracking in the application process. Especially, it is much higher than the cost performance of traditional brown corundum, making it the best aggregate and filler for brown corundum refractories.
Size:0-1, 1-3 mm(other size are available) Color: Brown
Al2O3:95% min Fe2O3:0.3% max SiO2:1.6 % max TiO2:3% max
Bulk density:1.8-2.1 mt/m3 Specific gravity:3.9-4.1 g/cm3
Hardness:8.0 Moh min Hardness: 2000 knoop
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