Common Grit Sizes of White Fused Alumina Abrasives and Their Applications

White Fused Alumina Macro Grit – Block Sizes

Common Sizes: 1–3mm, 3–5mm, 5–8mm

Applications:

These coarse sizes are mainly used in refractory materials such as castables, refractory bricks, and kiln furniture. Their excellent thermal stability and chemical inertness make them ideal for high-temperature environments.

White Fused Alumina Grains – Grain Sizes (F Grits)

Common Sizes: F16, F24, F32, F36, F46, F60, F80, F120

Applications:

These grain sizes are widely used in sandblasting, abrasive wheels, grinding stones, and coated abrasives. They provide aggressive cutting action and uniform surface finish, suitable for treating metals, glass, ceramics, and composite materials.

White Fused Alumina Fine Powder

Common Sizes: F180, F200, F220, F320, F400, F500

Applications:

Fine powders are commonly used in surface finishing, etching, and engraving of metal and non-metal components, including seals, nameplates, marble, and granite. Their uniform particle size enables consistent material removal and surface texturing.

White fused alumina is a high-purity synthetic abrasive made from industrial-grade aluminum oxide (Al₂O₃), melted at high temperatures in an electric arc furnace. With characteristics such as high hardness, dense structure, excellent wear resistance, and corrosion resistance, it is widely used across multiple industries including surface preparation, polishing, and refractory manufacturing.

Below is an overview of commonly used grit sizes of white fused alumina and their typical applications:

White Fused Alumina Micropowder

Common Sizes: F800, F1000, F2000, F3000, F4000, F6000, F8000

Applications:

Micropowders are ideal for ultra-fine polishing, matte finishing, and surface beautification of high-precision products such as glass, ceramics, jewelry, and optical components. These fine grades help achieve smooth, scratch-free finishes.

Summary

The wide range of grit sizes available for white fused alumina makes it suitable for diverse industrial needs—from heavy-duty blasting and grinding to delicate polishing and fine finishing. Choosing the right grit size depends on the specific material, surface requirements, and processing technique.

For more information or custom grit size recommendations, please contact our technical support team.