Item | DT-AT | DT-BT |
化学成分Chemical Composition (%) | AL2O3 | ≥35 | ≥30 |
SiC | ≥30 | ≥40 |
Fe2O3 | ≤1.2 | ≤1.2 |
体积密度Bulk Density(g/cm3) | ≥2.6 | ≥2.6 |
显气孔率Apparent Porosity (%) | ≤21 | ≤21 |
常温耐压强度Cold Crushing Strength (MPa) | ≥85 | ≥85 |
0.2Mpa荷重软化温度Refractoriness Under Load 0.2MPa (℃) | ≥1600 | ≥1600 |
耐火度Refractoriness (℃) | ≥1790 | ≥1790 |
高温抗折强度Cold Modulus of Rupture (MPa) | 1100℃×0.5h | ≥20 |
|
重烧线变化率Permanent Linear Change (%) | 1350℃×3h | -0.1~+0.1 | -0.1~+0.1 |
热震稳定性Thermal shock Resistance (Times) | 1100℃-Hydrocooling | ≥40 | ≥50 |