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Hot pressed Boron Nitride is manufactured by hot pressing. Its crystal structure is hexagonal. Due to the uniaxial densification method, the anisotropy of its platelet structure is created. As a result of the anisotropy, different physical properties occur, parallel or perpendicular to the pressing direction. It is a non-toxic material and can be easily machined.
See where Hot Pressed Boron Nitride falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.
1.9 - 1.95 g/cm³ at 20 °C
Compressive strength, transverseRs,trans
Elastic modulus, transverseE
Flexural strength, transverseσbendT
at 20 °C
Coefficient of thermal expansionα
6.7E-7 1/K at 700 °C
Coefficient of thermal expansion, transverseαtrans
8.7E-7 1/K at 1500 °C
Max service temperatureTmax
Max service temperature, inertTmax,inert
27.22 W/(m·K) at 20 °C
Thermal conductivity, transverseλtrans
30.98 W/(m·K) at 20 °C
39.4 kV/mm at 20 °C
1.70E+12 Ω·m at 20 °C
Electrical resistivity, transverseρel,trans
4.00E+12 Ω·m at 20 °C
49 - 52.9 %
40 - 42.6 %
3 - 5 %
0.5 - 3 %
Electrical insulators for high power transistors and thyristors; Electrical insulators and vacuum feedthroughs in high temperature furnaces; Thermocouple protection tubes; Crucibles and rollers for molten glass and metals; Rolls and support elements in the glass manufacturing industries
The key features are: Excellent thermal behaviour; High electrical resistivity; Chemically Stable; Extraordinary thermocycling properties; High temperature material
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This material data has been provided by Goodfellow.