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Product Description
Items | CA-70E | CA-70G | CA-70A | ||||
Refractoriness ℃ | 1650-1690 | ||||||
Chemical composition % | |||||||
Al2O3 | 68-72 | ||||||
CaO max | 30 | ||||||
SiO2 max | 1.0 | ||||||
Fe2O3 max | 0.7 | ||||||
Na2O+K2O max | 0.4 | ||||||
S max | 0.1 | ||||||
Specific density g/cm3 | 2.95-3.05 | 2.95-3.05 | 2.95-3.05 | ||||
Specific surface area m2/kg min | 600 | 600 | 600 | ||||
Mortar performance | |||||||
Initial setting time minutes min | 30 | 30 | 30 | ||||
Final setting time minutes max | 360 | 360 | 360 | ||||
Rupture strength Mpa | |||||||
6 hr | 3.0 | - | - | ||||
24 hr | 5.5 | 5.0 | 5.5 | ||||
72 hr | 6.5 | 6.0 | 6.5 | ||||
Cold crushing strength Mpa | |||||||
6 hr | 15 | - | - | ||||
24 hr | 40 | 30 | 40 | ||||
72 hr | 50 | 40 | 50 | ||||
Castable performance | corundum | Low cement | corundum | Low cement | corundum | Low cement | |
Water addition % | 5.2 | 6.8 | 5.2 | 6.8 | 5.2 | 6.8 | |
Flow value mm | |||||||
Initial flow value | 190 | 176 | 196 | 152 | 158 | 164 | |
30 minutes | 186 | 170 | 188 | 169 | 149 | 152 | |
60 minutes | 185 | 165 | 184 | 163 | 150 | 156 | |
Cold crushing strength Mpa | |||||||
24 hr room temperature | 22 | 25 | 19 | 25 | 24 | 26 | |
110℃ dry 24hr | 90 | 115 | 76 | 120 | 91 | 120 | |
1100℃ heating 6 hr | 55 | 110 | 55 | 120 | 55 | 109 | |
