White Steatite

Elan Technology White Steatite Properties

For further information, please contact us.

Density (g/cc): 2.56 RT 900°C 10-6/°C: 8.6
Color: Off-White Dielectric Constant 25°C / 1 kHz: 6.3
Flexural Strength MPa (psi × 103): 139 (29) Dissipation Factor 25°C/ 1 kHz: .003
Young’s Modulus GPa: 97 Volume Resistivity 25°C ohms-cm: >1014
RT 300° C 10-6/°C: 7.5 Volume Resistivity 300 °C ohms-cm: 1.0 x 1011
RT 700°C 10-6/°C: 8.2 Volume Resistivity 500 °C ohms-cm: 3.7 x 108


Steatite is a magnesium silicate material that has been used for many decades as insulators or enclosures for electrical components. Additionally, it has been incorporated into many appliance, aerospace and automotive applications where moderate strength, low cost and good electrical resistance are required. Steatite can be formed into complex shapes prior to sintering, which has led to wide usage in a variety of applications.

In addition to White Steatite, a Standard Steatite and Low Loss version of the material is also available.

Elan Technology, Inc. offers three grades of steatite (Steatite, White Steatite & Low Loss Steatite) with varying properties to meet your most challenging applications.

Overview of Physical Properties

  • Relatively high mechanical strength
  • High volume resistivity at elevated temperatures
  • Excellent dielectric strength
  • Low dissipation factor

Overview of Applications

  • Supports for heating elements
  • Electrical insulators
  • Stand-off insulators
  • Lighting insulators (supports, bases, etc.)
  • Spacers
  • Insulating washers or bushings

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