white aluminium oxide powder

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Fused alumina powder is made from high quality alumina by melting above 2000°C in the electric arc furnace and then cooling. It is with high purity, great self-sharpening, acid and alkali resistance, high temperature 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. It can be made to the abrasives, suitable for sandblasting and grinding high carbon steel and staining steel and other fine-grained abrasive; also be used for precision casting and high-refractory materials. Physical properties Hexagonal Main crystal body:Al2O3 Color:white Grain density≥3.9 g/cm3 Bulk density:1.75-1.95 g/cm3 Morse hardness ≥9 Linear expansion coefficient(1/°C) 8.3x10-4 Chemical compositions Value of specifications (%) Al2O3≥99.38 Na2O≤0.28 SiO2≤0.10 Fe2O3≤0.04 Loss on ignition (%)≤0.12

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Henan Sicheng Co., Ltd

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