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 |