产品描述
牌号 | 低蠕变粘土砖 | 低气孔粘土砖 | 特种高铝砖 | 特种红柱石砖 | ||
化学成分 | Al2O3% | 42-53 | ≥42 | ≥58 | 55-60 | |
Fe2O3% ≤ | 1.6 | 2.0 | 1.5 | 1.2 | ||
CaO + MgO%≤ | 0.7 | 0.7 | 0.7 | 0.4 | ||
Na2O + K2O%≤ | 0.8 | 0.8 | 0.8 | 0.5 | ||
体积密度g / cm3≥ | 2.2 | 2.2 | 2.45 | 2.25 | ||
显气孔率%≤ | 19 | 17 | 20 | 18 | ||
耐压强度 Mpa≥ | 40 | 40 | 50 | 60 | ||
0.2MPa荷软温度RUL T0.6℃≥ | 1450 | 1450 | 1600 | 1600 | ||
蠕变%1280℃,25h,0.2Mpa≤ | 0.4 | - | 0.4 | 0.2 | ||
抗折强度 Mpa≥ | 1200℃ | 10 | - | - | 12 | |
1350℃ | 4 | - | 6 | 6 | ||
热膨胀率20-1000℃ %≤ | 0.7 | 0.7 | 0.7 | 0.6 | ||
耐火度℃≥ | - | - | - | 1790 | ||
重烧线变化 1500℃* 2h | - | - | - | -0.1-+0.1 | ||
热震T.S.R 1100℃水冷-次≥ | - | - | - | 35 |