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Carbon / Graphite



carbon / graphite overview

CoorsTek carbon and graphite both have high purity, thermal conductivity, and electrical conductance. The unique combination of purity and thermal conductivity prevents contamination and thermal shock: making the material ideal for both semiconductor manufacturing and high-strength electronics.

Different coatings can be applied to augment the material properties. Additionally, the low electrical resistivity and high thermal conductivity makes carbons ideal for maintaining a lower operating temperature in heat generating electrical parts like motor brushes. 

  • Electrical conductance
  • High purity
  • Thermal shock resistance
  • Thermal conductivity

Example Applications

  • Motor brushes
  • Crucibles


CoorsTek Formulations

Contact a CoorsTek expert to choose a Carbon solution for your application.

Property Units Value

Flexural Strength, MOR (20 °C)


40 - 300

Fracture Toughness, KIc

MPa m1/2

Thermal Conductivity (20 °C)

W/m K

107 - 340

Coefficient of Thermal Expansion

1 x 10-6/°C


Maximum Use Temperature


1500 - 3000

Dielectric Strength (6.35mm)


Dielectric Loss (tan δ)

1MHz, 25 °C


Volume Resistivity (25°C)



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.