Item | CNCM-75 | CNCM-85 | CNCM-95 | |
Al2O3(%) ≥ | 75 | 85 | 95 | |
SiO2(%) ≥ | 20 | 10 | 2 | |
CaO(%) ≥ | 2.5 | 1.5 | 1.2 | |
Bulk Density(g/cm³) | 110℃≥ | 2.7 | 2.8 | 2.9 |
815℃≥ | 2.75 | 2.85 | 3 | |
1100℃≥ | 2.8 | 2.9 | 3.1 | |
Crushing Strength(Mpa) | 110℃ ≥ | 60 | 120 | 140 |
815℃ ≥ | 70 | 120 | 140 | |
1100℃ ≥ | 80 | 120 | 140 | |
Modulus of Rupture(Mpa) | 110℃ ≥ | 8 | 22 | 22 |
815℃ ≥ | 9 | 21 | 18 | |
1100℃≥ | 12 | 20 | 18 | |
Thermal Shock(900℃ water) times ≥ | 20 | 20 | 30 |