Black silicon carbide 220 is made of quartz sand and petroleum coke as the main raw materials, and is smelted at high temperature in a resistance furnace. It is black crystal, brittle and sharp, and has certain thermal and electrical conductivity.

Black Silicon Carbide Powder Typical Physical Properties

01.

Microscopic Shape

The microscopic shape of green vs black silicon carbide series is hexagonal crystal, the Mohs hardness of silicon carbide is 9.3.

02.

Micro-density Hardness

The micro-density hardness is 2940--3300 kg/mm2, and the Knoop hardness is 2670-2815 kg/mm2, which is higher than corundum and second only to diamond in abrasives, cubic boron nitride and boron carbide.

03.

Density

The density of silicon carbide grains black is generally considered to be 3.20-3.25 g/cm3.

04.

Natural Bulk Density

The natural bulk density of silicon carbide abrasives is between 1.2--1.6 g/cm3, and the specific gravity is 3.20-3.25 g/cm3.

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