Alumina sand

Alumina sand

Product Details

Product name: Alumina sand, special abrasive for shot blasting machine

Product model: 30-220#

product description:

White corundum is made of aluminum powder from industrial gasification, smelted at a high temperature of over 2000 degrees in an electric arc, and then cooled. It is crushed, shaped, magnetically removed, and sieved into multiple particle sizes. It is dense and has high hardness. The grains are formed into sharp corners, which are used to make ceramics, cement-fixed abrasive tools, as well as grinding, polishing, sanding, precision manufacturing (corundum for fine temples), etc. The embryos can be used to manufacture high-grade refractory materials, code"" is consistent with the national team’s general and national standards, most of which are for export, and there is also a certain amount for domestic use. The six-grade particle size is based on the national team standard and the national standard, and can be processed according to the particle size required by the user. The general particle size is F4~F320, and its chemical composition varies depending on the particle size. The outstanding feature is that the crystal size is small and impact resistant. If it is processed and broken by a self-milling machine, the particles are mostly spherical particles, and the surface is dry and clean, and it is easy to combine.


The content of A1203 is generally higher than 98%, the hardness is higher than that of brown corundum, the toughness is lower than that of brown corundum, and it has better cutting performance.


Abrasives made with it can penetrate hardened alloy steel and high-speed steel. The fine-grained powder can be used for precision manufacturing.

Physical properties:

Density: 3.90 g/cm3 Hardness: Mohs hardness 9.0

Color: white, dark blue after being destroyed. Melting point: 2250C

Maximum operating temperature: 1900C

Specific heat (Ca/gC): 0.26 (20-90'C)