Low cement refractory Castable mainly includes three types: high alumina refractory Castable, mulite refractory Castable, corundum refractory Castable. This series of Castable are featured with high strength, anti-scouring, anti-abrasive, and excellent performance.
With these characteristics, the low cement refractory Castable is widely used as linings in reheating furnace and other industrial furnaces.
Application of Low Cement Refractory Castable
- Furnaces of metallurgy industry, heat treatment furnace.
- Furnace of incineration of garbage, recirculating fluidized bed furnace.
- Furnaces of chemical industry and construction industry.
- Tundish lining.
Low Cement Refractory Castable Technique Data
Al2O3, % ≥ |
50 |
60 |
70 |
80 |
90 |
CaO, % ≤ |
2.5 |
2.2 |
2 |
2 |
1.8 |
Bulk density, g/cm3 ≥ |
2.35 |
2.45 |
2.5 |
2.6 |
2.95 |
Cold crushing strength, Mpa ≥ |
110x24h |
20 |
25 |
30 |
30 |
40 |
1000x3h |
45 |
50 |
55 |
55 |
65 |
1400x3h |
60 |
65 |
70 |
70 |
80 |
Linear on reheating, % |
1400x3h |
±0.5 |
±0.4 |
±0.4 |
±0.3 |
±0.4 |
Max. service temperature, °C |
1400 |
1450 |
1500 |
1550 |
1650 |
Water consumption, % |
6 ~ 7.5 |
6 ~ 7.5 |
6 ~ 7.5 |
6 ~ 6.5 |
6 ~ 6.5 |