Boron Nitride/BN 

Physical properties
Specific gravity (S.G): approximately 2.29 g/cm3
Porosity: usually less than 10%
Vickers hardness (HV1 Hardness): 10 ~ 45 GPa
Flexural Strength: 16 ~ 42 MPa
Compressive Strength: 400 ~ 800 MPa
Young's Modulus: 25 ~ 120 GPa
Fracture Toughness: 3 ~ 6 MPam1/2

Thermal properties
Coefficient Of Thermal Expansion
40 ~ 400°C: about 1 x 10^-6/°C
40 ~ 800°C: about 1.05 x 10^-6/°C
Thermal Conductivity: 600 ~ 800 W/m-k
Specific Heat: 0.6 ~ 1.0 J/g*K

Electrical properties
Thermal shock/resistance Dielectric Strength: 40 ~ 50 kV/mm
Volume Resistivity
20°C: >10^13Ω·cm
500°C: >10^7Ω·cm
Dielectric constant (Permittivity) (1MHz): 3.5 ~ 4.2 C^2/(N·m^2)
Dielectric Loss Angle (1MHz): <4 x 10^-4

Due to its excellent properties, boron nitride has important applications in many fields, such as high-temperature insulators, semiconductor materials, and lubricants. Selecting the appropriate boron nitride product can meet different industrial needs.