2021-10-14
| T70 | T80 | T92 | T95 | T99 | T99(Heat storage) | ||
| Chemical composition | Al2O3 Content(％) | ≥70 | ≥80 | ≥92 | ≥95 | ≥99 | ≥99 |
| Fe2O3 Content(％) | ≤0.5 | ≤0.2 | ≤0.15 | ≤0.1 | ≤0.1 | ≤0.1 | |
| Na2O Content(％) | / | / | / | ≤0.45 | ≤0.45 | ≤0.35 | |
| water absorption rate(％) | ＜5 | ＜5 | ＜5 | ＜5 | ＜5 | ＜3 | |
| acid resistance(％) | ≥90 | ≥90 | ≥95 | ≥95 | ≥95 | / | |
| fastness to alkali(％) | ≥85 | ≥90 | ≥90 | ≥95 | ≥97 | / | |
| spalling resistance (℃) | ≥500 | ≥600 | ≥700 | ≥750 | ≥800 | ≥800 | |
| Collapse load （KN） | φ3 | ≥0.35 | ≥0.35 | ≥0.4 | ≥0.5 | ≥0.6 | ≥0.8 |
| φ6 | ≥1.0 | ≥1.0 | ≥1.5 | ≥1.5 | ≥2.0 | ≥2.5 | |
| φ8 | ≥1.2 | ≥1.5 | ≥2.0 | ≥3.0 | ≥3.0 | ≥3.0 | |
| φ10 | ≥2.0 | ≥2.5 | ≥3.0 | ≥3.5 | ≥5.0 | ≥6.0 | |
| φ13 | ≥3.0 | ≥4.0 | ≥6.0 | ≥7.00 | ≥8.0 | ≥8.0 | |
| φ16 | ≥4.5 | ≥6.0 | ≥8.0 | ≥10.0 | ≥12.0 | ≥12.0 | |
| Φ19 | ≥6.0 | ≥8.0 | ≥10.0 | ≥12.0 | ≥15.0 | ≥17.0 | |
| φ25 | ≥8.0 | ≥10.0 | ≥12.0 | ≥15.0 | ≥18.0 | ≥20.0 | |
| φ30 | ≥10.0 | ≥12.0 | ≥15.0 | ≥18.0 | ≥20.0 | ≥25.0 | |
| φ38 | ≥15.0 | ≥20.0 | ≥22.0 | ≥25.0 | ≥25.0 | ≥25.0 | |
| φ50 | ≥20.0 | ≥25.0 | ≥25.0 | ≥25.0 | ≥25.0 | ≥25.0 | |
| bulk density(g/cm3) | 2.65-3.0 | 2.9-3.2 | 3.2-3.5 | 3.3-3.6 | ≥3.2 | ≥3.5 | |
| stacking density(kg/m³) | 1500-1650 | 1700-1850 | 1800-1950 | 1850-1950 | ≥1900 | ≥2000 | |
| broken rate (with the height of 6 meters)（%） | 3mm-38mm broken rate0%，50mm broken rate≤1% | ||||||
