Low Loss Steatite

Lower Dielectric Loss Steatite Ceramic

For further information, please contact us.

Density (g/cc): 2.91 RT 900°C 10-6/°C: 8.9
Color: Tan Dielectric Constant 25°C / 1 kHz: 6.3
Flexural Strength MPa (psi × 103): 152 (22) Dissipation Factor 25°C/ 1 kHz: .001
Young’s Modulus GPa: 113 Volume Resistivity 25°C ohms-cm: >1014
RT 300° C 10-6/°C: 7.4 Volume Resistivity 300 °C ohms-cm: 1.6 x 1011
RT 700°C 10-6/°C: 8.3 Volume Resistivity 500 °C ohms-cm: 9.1 x 108


Steatite ceramic 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 ceramic can be formed into complex shapes prior to sintering, which has led to wide usage in a variety of applications.

The Low Loss Steatite ceramic material provides the same advantages as our normal steatite, but with a lower dielectric loss factor, and typically a higher strength and higher density. The Low Loss Steatite is used in applications where better insulation is desired, since it has a low dielectric loss factor and relatively high electrical resistance.

In addition to Low Loss Steatite, a Standard Steatite and White 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
  • Low dielectric loss factor
  • High electrical resistance

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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