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Corundum and Mullite Products | Bonded Corundum Brick | |||||||
MS-70 | MS-72 | MS-75 | GM-85 | BC-99 | ||||
Al2O3%≥ | 70 | 72 | 75 | 85 | 99 | |||
SiO2%≤ | 26 | 25 | 23 | 13 | ||||
Fe2O3%≤ | 1.2 | 0.2 | 0.5 | 0.5 | 0.3 | |||
Bulk Density≥g/cm³ | 2.50 | 2.65 | 2.69 | 2.95 | 3.15 | |||
Apparent Porosity%≤ | 17 | 17 | 17 | 17 | 18 | |||
Cold Crushing Strength(MPa)≥ | 70 | 80 | 80 | 80 | 100 | |||
Reheating Linear Change% | 1500℃*3h± 0.2 | 1400℃*2h+0.15~-0.5 | 1500℃*3h± 0.2 | |||||
0.2MPa Refractoriness Under Load ≥℃ | 1580 | 1650 | 1680 | 1700 | 1750 | |||










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