Why aluminum oxide materials have different colors?
Brown fused aluminum oxide, a material favored for its cost-effectiveness, is produced from high-quality bauxite smelted at high temperatures in an electric arc furnace. Its primary component is aluminum oxide (Al₂O₃, approximately 95%), with trace amounts of iron, silicon, titanium, and other oxides. Its key characteristics include high hardness and good toughness, strong self-sharpening properties, and excellent corrosion resistance in corrosive environments.
Each industry has its own specialty. Typical applications include grinding and sharpening surgical instruments, polishing medical needles and probes, sandblasting and roughening the surfaces of medical implants (such as joints and dental nails), and even micro-sandblasting for cleaning laboratory equipment (glassware). It is widely used in medical applications.

White Corundum for Medical Industry

As a professional manufacturer, we produce high-quality white fused aluminum oxide from industrial alumina, smelted in an electric arc furnace at high temperatures. Our product boasts a purity exceeding 99% and is virtually free of impurities. This exceptional hardness and purity ensure a virtually impurity-free customizable raw material, making it particularly suitable for medical applications requiring the highest surface finish, such as ultra-fine polishing of dental drills and mirror finishing of surgical instruments. Compared to brown corundum, white corundum particles are more brittle and easily break into sharp, small particles, making them ideal for applications requiring extremely fine cutting.
Today, with the changing times and rapidly evolving socioeconomic trends, our customizable white corundum is in high demand for ultra-fine polishing of high-end medical devices, ultra-fine sandblasting of implant surfaces, and medical consumables with stringent impurity requirements.
