Black silicon carbide is brittle and sharp. It has good electrical and thermal conductivity.

Microhardness is 3100-3280kg/mm

Abrasive articles made of it are suited for working on metal and nonmetalic materials of low-tensive strength such as grey cast iron, brass, aluminium, stone, lcather and rubber etc. Moreover, it can be used in the manufacture of refractory products and electric industry etc.