| Item | DT-AT  | DT-BT | 
| 化學(xué)成分Chemical Composition (%) | AL2O3 | ≥35 | ≥30 | 
| SiC | ≥30 | ≥40 | 
| Fe2O3 | ≤1.2 | ≤1.2 | 
| 體積密度Bulk Density(g/cm3) | ≥2.6 | ≥2.6 | 
| 顯氣孔率Apparent Porosity (%) | ≤21 | ≤21 | 
| 常溫耐壓強度Cold Crushing Strength (MPa) | ≥85 | ≥85 | 
| 0.2Mpa荷重軟化溫度Refractoriness Under Load 0.2MPa (℃) | ≥1600 | ≥1600 | 
| 耐火度Refractoriness (℃) | ≥1790 | ≥1790 | 
| 高溫抗折強度Cold Modulus of Rupture (MPa)  | 1100℃×0.5h | ≥20 | 
 | 
| 重?zé)€變化率Permanent Linear Change (%)  | 1350℃×3h | -0.1~+0.1 | -0.1~+0.1 | 
| 熱震穩(wěn)定性Thermal shock Resistance (Times)  | 1100℃-Hydrocooling | ≥40 | ≥50 |