Machining Properties For Boron Nitride (BN)

Many of the properties of Boron Nitride vary significantly with the grade of the material.

Chemical Formula of Boron Nitride

The chemical formula of Boron Nitride is provided in the table below:

Property Value*
Chemical Formula BN

* All properties are at room temperature unless otherwise noted.

Mechanical Properties of Boron Nitride

The mechanical properties of Boron Nitride are mentioned in the table below:

Property Value*
Density 1.9-2.1 gm/cc
Hardness 25-205 Knoop
Modulus of Elasticity 9.4 x 106 psi
Flexural Strength 11.2 kpsi
Compressive Strength 45 kpsi
Poisson's Ratio 0.05

* All properties are at room temperature unless otherwise noted.

Electrical Properties of Boron Nitride

The electrical properties of Boron Nitride are mentioned in the table below:

Property Value*
Dielectric Strength 950 ac V/mil
Dielectric Constant 4.08(@ 1 MHz)
Volume Resistivity >1014 ohm-cm

* All properties are at room temperature unless otherwise noted.

Thermal Properties of Boron Nitride

The thermal properties of Boron Nitride are mentioned in the table below:

Property Value*
Coefficient of Thermal Expansion 2.3-10 x 10-6/°C
Thermal Conductivity 1.9-160 W/mK
Specific Heat 0.14 cal/g°C
Maximum Working Temperature 850-3000°C
Inert Atm

* All properties are at room temperature unless otherwise noted.

About Insaco

Since 1947, Insaco has been synonymous with excellence in the development and production of high precision machined parts. As a custom fabricator of ceramic, glass, sapphire, and other hard materials, Insaco specializes in machining parts that often require tolerances measured in millionths of an inch, and wear properties that satisfy even the most demanding applications.

This information has been sourced, reviewed and adapted from materials provided by INSACO Inc.

For more information on this source, please visit INSACO Inc.

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