| Property* | Value |
|---|---|
| General | |
| Chemical Formula | MgO-SiO2 |
| Mechanical | |
| Density | 3.7 gm/cc |
| Hardness | 7.5 Mohs |
| Tensile Strength | 10 kpsi |
| Flexural Strength | 17 - 21 kpsi |
| Compressive Strength | 80 - 90 kpsi |
| Electrical | |
| Dielectric Strength | 230 - 447 ac V/mil |
| Dielectric Constant | 5.9 - 6.5 (@ 1 MHz) |
| Volume Resistivity | 6 x 109 ohm-cm |
| Thermal | |
| Coefficient of Thermal Expansion | 6.1 - 8 x 10-6/°C |
| Thermal Conductivity | 5 W/mK |
| Maximum Working Temperature | 1300 °C |
| All properties are at room temperature unless otherwise noted. Engineering data are representative, and are not intended as absolute nor warrantable. Manufacturer’s Data shown is blended from multiple sources and therefore illustrates the marketplace. | |
Wikipedia Reference for Steatite
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