Type | Common | Standard | High aluminum | Zir-Alu | Ultra-High1600 | Ultra-High1700 | Ultra-High1800 | |
Classification temperature (°C) | 1100 | 1260 | 1350 | 1430 | 1600 | 1700 | 1800 | |
Working temperature (°C) | ≤1000 | 1050 | 1200 | 1350 | 1500 | 1600 | 1700 | |
Color | White | Pure White | Pure White | Pure White | Pure White | Pure White | Pure White | |
Density (kg/m3) | 250 ~ | 250 ~ | 250 ~ | 250 ~ | 300 ~ | 350 ~ | 350 ~ | |
~400 | ~400 | ~400 | ~400 | ~400 | ~600 | ~600 | ||
Shrinkage on heating (%) ( 24Hrs x 300kg/m 3 ) |
-2.5 | -2 | -1.5 | -1.5 | -2 | -1 | -0.6 | |
(1000°C) | (1000°C) | (1200°C) | (1350°C) | (1500°C X8 Hrs) | (1600°C X8 Hrs) | (1700°C X8 Hrs) | ||
Thermal conductivity of various temperatures(w/m.k) (density 280kg/m3) | 400° C | 0.08 | 0.07 | 0.065 | 0.06 | 0.11 | 0.12 | 0.16 |
600° C | 0.14 | 0.13 | 0.125 | 0.12 | 0.14 | 0.15 | 0.20 | |
800° C | 0.2 | 0.18 | 0.017 | 0.16 | 0.17 | 0.19 | 0.23 | |
1000° C | 0.22 | 0.2 | 0.24 | 0.25 | 0.29 | |||
1200° C | 0.28 | 0.28 | 0.33 | |||||
1400° C | 0.33 | 0.34 | 0.36 | |||||
Chemical composition | AL2O3 | 45-47 | 45-47 | 52-55 | 39-54 | >60 | >65 | >80 |
AL2O3+SIO2 | 98 | 98 | 99 | 83-89 | >97 | >97 | 98 | |
AL2O3+SIO2+ZrO2 | - | - | - | 99 | - | - | - | |
ZrO2 | - | - | - | 15-17 | - | - | - | |
Dimensions (mm) | Standard dimension: 900*600*5-50; 1200*600*25-50;Other specifications can be available. | |||||||