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Steatite

Composition

Mg Silicate

Description

Steatite is used in electronic components and manufacturing processes. Its low dielectric loss combined with a high dielectric strength make it an excellent inexpensive component for electronics and manufacturing processes. 

Example Applications

  • Traditional electrical insulators
  • Fuses
     

CoorsTek Formulations

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

Columns
Property Units Value

Flexural Strength MOR, (20°C)

MPa

40-160

Compressive Strength, (20°C)

MPa

-

Fracture Toughness, KIc

MPa m1/2

1.0-2.0

Hardness, Rockwell 45N

R45N

57

Hardness, Knoop 1000gm

GPa

-

Maximum Use Temperature

°C

1200

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

1 x 10-6/°C

7.0-10.0

Thermal Shock Resistance, (∆T)

°C

100

Thermal Conductivity, (20°C)

W/m K

1.5-3.0

Dielectric Strength, (6.35mm)

ac-kV/mm

-

Dielectric Constant, (1 MHz)

25°C

-

Volume Resistivity, (25°C)

ohm-cm

1013

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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