white corundum in abrasives

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White corundum , is made from high quality alumina by being melted above 2000°C in the electric arc furnace. It is characterized by high purity, great self-sharpening, acid and alkali resistance, high temperature resistance and stable thermal performance. Its hardness is a little higher than brown fused alumina. It is with low toughness, great grinding ability, small heat and high efficiency. White fused alumina can be made into all kinds of abrasives, suitable for grinding high carbon steel, high speed steel, stainless steel and other fine-grained abrasives; it can be also used for precision casting and high-refractory materials. Physical properties: Density: 3.9g/cm³ True Density: 3.85g/cm³ Bulk Density: 1.75~1.95g/cm³ Fire - resistant Temperature: 1850°C Melting Point: 2250 °C Mohs Hardness: 9.0 Chemical Composition Al2O3 99.5% MIN Fe2O3 0.04% MAX Na2O 0.3% MAX SIO2 0.06% MAX Tel：86-371-68706006 Fax：86-371-60305637 E-mail：qianqian.wang@zzhaixu.cn SKYPE:susanwang.qianqian MSN：gw402416@live.com

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Zhengzhou Haixu Abrasives Co.,Ltd

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