Boron Nitride main technical parameters 

Melting point/°C

3000(disintegrate)

Operating temperature/°C

900~1000(atmosphere),2800(N2)

Density/g.cm^-3

2.27

Hardness(Moh’s)

2

Thermal conductivity/W.m-3.K^-1

46.75~50.24

Coefficient of thermal expansion/10^-6 °C^-1

7.5

Breakdown voltage/kV.m^-1

(3.0~4.0)×10⁴

Dielectric constant(ε)

4.0~4.3

Dielectric loss(tanδ)/10^-4

2~8

Resistivity /Ω.m

>10¹²

Bending strength(RT)

>35mpa

The compressive strength(RT)

>200mpa