Basic characteristics of CBN and SD compared to other grinding materials

Grinding material Density, kg/m³ Microhardness, 10²*MPa Resistance to heat, К
Synthetic diamond 3480-3560 1000 1000-1100
Cibic boron nitride 3420-3450 800-950 1400-1500
Borium 2380-2520 370-470 1000-1100
Silicone carbide 3120-3200 330-360 1600-1700
Electrocorundum 3960-3980 200-230 2000-2100