Chemical Composition: | | | | | | | | | | |||||||||
Element | SiO₂ | Al₂O₃ | K₂O | Na₂O | MgO | CaO | TiO₂ | Fe₂O₃ | S+P | |||||||||
Content (%) | 38-47 | 10-20 | 7-10.6 | 0.6-0.7 | 21.4-29.4 | 0.4-0.6 | 0.3-0.9 | 0.5-2.8 | 0.02 |
Physical Property: | | | | | | | ||||||
Thermal Endurance (℃) | Mohs Hardness | Density (g/cm³) | Dielectric Strength (KV/mm) | Tensile Strength (MPa) | Surface Resistivity (Ω) | Melting Point (℃) | ||||||
1000 | 2.5-3 | 2.7-2.9 | 120-140 | 156-210 | 1×1011-12 | 1270-1330 |