Alumina, Al₂O₃, is available with a purity of up to 99,6%. It is a polycrystalline material with a grain size of 1 to 5 microns, an average density of 3,95 g/cm³ and a hardness of about 2000 Vickers.

● Good electrical insulation at room temperature and high temperature.

● Small loss of mechanical strength at high temperatures and strong resistance to chemical corrosion (such as acid and alkali).

● High hardness and wear resistance, as well as compressive strength and other characteristics, widely used in electronic and electrical industries.

Alumina ceramic products are used for many industries, such as:

⭐️Shafts and plungers in high wear environments

⭐️Roller and ball bearings

⭐️Wear-resistant lining

⭐️Semiconductor parts

⭐️Machine component

⭐️High temperature electrical insulator

⭐️High voltage insulator

⭐️Wires and conductors

⭐️Mechanical seal