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| Silicate ceramic Steatite C221 | ||||
| Chemical composition: SiO2, MgO, Al2O3 | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 2.7 *10³ | kg/m³ | 168.5 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 110 | GPa | 15950 | ksi |
| Flexural strength | 140 | MPa | 20300 | psi |
| Compressive strength | 900 | MPa | 130500 | psi |
| Thermal expansion (20 ºC) | 7.0*10-6 | ºCˉ¹ | 3.9*10-6 | in/(in* ºF) |
| Thermal conductivity | 2.5 | W/(m*K) | 17.3 | BTU*in/(hr*ft²*ºF) |
| Dielectric constant | 6 | - | 6 | - |