化学成分 chemical composition % | AL2O3 | 72-77 |
SiO2 | 23-29 |
Fe2O3 | ≤0.1 |
R2O | ≤0.5 |
RO | ≤0.3 |
莫来石相含量 mullite phrase coe (%) | ≥95 |
玻璃相含量 glass phase coe (%) | ≤5 |
线膨胀系数 linear expansion coefficie (1/℃) | -6.0*10-6 |
真密度 eal density (g/m³) | ≥3.2 |
耐火度 efractoriness (℃) | ≥1840 |
段砂颗粒尺寸grain size of section sand (mm) | 0-1/1-3/3-5 |
细粉 powder (目mesh) | 0-325 0-200 |