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Product Description
Special Andalusite Brick
Items
| Special high alumina brick | Special andalusite brick | ||
Chemical composition | Al2O3 % | ≥58 | 55-60 | |
Fe2O3 % ≤ | 1.5 | 1.2 | ||
CaO+MgO % ≤ | 0.7 | 0.4 | ||
Na2O+K2O % ≤ | 0.8 | 0.5 | ||
Bulk density g/cm3 ≥ | 2.45 | 2.25 | ||
Apparent porosity %≤ | 20 | 18 | ||
CCS Mpa ≥ | 50 | 60 | ||
0.2Mpa RUL T0.6 ℃≥ | 1600 | 1600 | ||
Creep rate 1280℃，25h, 0.2Mpa % ≤ | 0.4 | 0.2 | ||
MOR Mpa ≥ | 1200℃ | -- | 12 | |
1350℃ | 6 | 6 | ||
20-1000℃ Thermal expansion % ≤ | 0.7 | 0.6 | ||
Refractoriness ℃ ≥ | - | 1790 | ||
P.L.C 1500℃*2h | - | -0.1－+0.1 | ||
T.S.R 1100℃ water cooling -cycle ≥ | - | 35 | ||
