Physical Properties
| Coefficient of Expansion | 33 x10-7/C° between 20°C - 300°C |
| Specific Heat | 0.8 x 103 J/kg K-1 bei 20°C |
| Thermal Conductivity | 1.13 W/m K-1 at 20°C |
| Density | 2.23 x 103 kg/m3 |
| Poisson's Ratio | 0.22 between 25°C - 400°C |
| Young's Modulus | 6.500 kg/mm2 at 25°C |
| Rigidity Modulus | 64 x 103 MPa |
| DPH (Vickers) Hardness | 580 kg/mm2 with 50 gram load |
| Relative Hardness | 1.52 (comparative Soda-Lime = 1.0) |
| Refractive Index | 1.474 Sodium D - line |
| Dielectric Constant | 4.6 at 1 MHz and 20°C |
| Loss Factor | 2.6 % at 1 MHz and 20°C |
| Log10 Volume Resistivity | 15 Ohm - cm/s at 20°C |
Surface Resistivity | 1013 Ohm s⋅cm-2 at 50% humidity |
Transformation Point(tg) | 525 °C |
