Corundum

Product Introduction

　　The corundum is used for refractory or abrasive material, with the hardness second only to that of diamond. Its crystal is barrel- shaped, column-shaped, plate-shaped, etc., with a melting point of 2,050°C. Corundum classification: Natural corundum (natural corundum is usually blue and yellow, and the transparent and brightly colored is called the gem; those containing trace chromium and with red color is called ruby, and those containing trace titanium and with blue color is called sapphire); artificial corundum (fused corundum and sintered corundum).

Chemical composition 

Chemical composition of brown corundum:

Granularity:

　　It is customized as required by the buyer, and its common specifications include 0-1 mm, 1-3 mm, 3-5 mm, 5-8 mm, 8-15 mm, 200 meshes,etc.