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Boron Carbide

Composition

B4C

Description

Boron carbide is one of the world's hardest manufactured materials. It is used in ballistic armor, taking advantage of its exceptional hardness and low density (2.47-2.65 grams/cm3). Additionally, the strong chemical bonds and hard surface minimize wear in rigorous environments. 

Example Applications

  • Ballistic armor
  • Neutron absorbers

CoorsTek Formulations

Contact a CoorsTek expert to choose a Boron Carbide solution for your application.

Columns
Property Units Value

Flexural Strength MOR, (20°C)

MPa

250-450

Compressive Strength, (20°C)

MPa

1721-3070

Fracture Toughness, KIc

MPa m1/2

3.0-5.0

Hardness, Rockwell 45N

R45N

-

Hardness, Knoop 1000gm

GPa

24.5

Maximum Use Temperature

°C

1000-2000

Coefficient of Thermal Expansion, (25-1000°C)

1 x 10-6/°C

4.5-4.9

Thermal Shock Resistance, (∆T)

°C

-

Thermal Conductivity, (20°C)

W/m K

20.0-100.0

Dielectric Strength, (6.35mm)

ac-kV/mm

-

Dielectric Constant, (1 MHz)

25°C

-

Volume Resistivity, (25°C)

ohm-cm

102-103

The information provided on this chart is for general material property reference only.  The customer should recognize that exact properties of materials may vary according to product configuration but close control of values of most properties can be maintained, if specified. Nothing herein is provided, or is to be construed, as absolute engineering data or constituting a warranty or representation. Contact CoorsTek for cost-effective design, development and manufacturing assistance. CoorsTek has 300+ variations including various forming and firing processes, not all variants are represented in the present website.

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