Steatite ceramics are often used in electrical insulation applications due to their excellent electrical properties, including low dielectric loss combined with a high dielectric strength make it an excellent inexpensive component for electronics and manufacturing processes. Many insulators and other standoffs are made of steatite. The cost of this material is relatively low when compared with other ceramic materials.

Ortech provides state of the art materials manufactured using the most cost-effective processes. Ortech manufacturing facilities to support quick-turn prototype development and high-volume production.

Manufacturing Processes

  • Dry pressing
  • Co-firing
  • Roll compacting
  • Slip casting
  • Isostatic pressing

Advanced Finishing Services

  • Precision grinding and lapping
  • Machining to precision tolerances
  • Engineering design and support
  • Threaded components

Material Properties Chart

Density g/cm3 2.78
Crystal Size Average Microns
Water Absorption % 0
Gas Permeability – 0
Color – Beige
Flexural Strength (MOR) 20° C MPa (psi x 103) 140
Elastic Modulus 20° C GPa (psi x 106) 110
Poisson’s Ratio 20° C –
Compressive Strength 20° C MPa (psi x 103)
Hardness Rockwell R45N 57
Tensile Strength 25° C MPa (psi x 103)
Fracture Toughness K(I c) MPam1/2
Thermal Conductivity 20° C W/m K 2.5
Coefficient of Thermal Expansion 25-1000° C 1X 10-6/°C 9
Specific Heat 100° C J/kg*K
Thermal Shock Resistance Δ Tc °C 100
Dielectric Strength 6.35mm ac-kV/mm (ac V/mil)
Dielectric Constant 1 MHz 25° C
Dielectric Loss (tan delta) 1 MHz 25° C
Volume Resistivity 25° C ohm-cm
Volume Resistivity 500° C ohm-cm
Volume Resistivity 1000° C ohm-cm