Refractory castables for cement kilns according to customer's kiln conditions.
Name |
Corundum Castable |
High Alumina Castable |
High-strength |
Low-cement |
High-strength |
Low-cement |
Al 2 O 3 (%) ， ≥ |
93 |
92 |
78 |
75 |
SiO 2 (%) , ≤ |
1 |
4 |
15 |
20 |
Bulk density (g/cm 3 ) , ≥ |
3.0 |
3.0 |
2.65 |
2.60 |
Cold crushing strength (MPa), ≥ |
110℃×24h |
100 |
80 |
100 |
80 |
1100℃×3h |
100 |
80 |
100 |
80 |
1500℃×3h |
100 |
80 |
/ |
/ |
Modulus of
Rupture
(mpa), ≥ |
110℃×24h |
13 |
8 |
10 |
8 |
1100℃×3h |
13 |
8 |
10 |
8 |
1500℃×3h |
15 |
8 |
/ |
/ |
Thermal expansion (%) |
1100℃×3h |
0.2 ~ -0.2 |
0.1 ~ -0.3 |
0.1 ~ -0.3 |
0.1 ~ -0.3 |
1500℃×3h |
0.5 ~ -0.5 |
0.2 ~ -0.6 |
/ |
/ |
Max. service temperature ( ℃ ) |
1750 |
1650 |
1650 |
1600 |
Forming method |
Vibration |
Vibration |
Vibration |
Vibration |
|
