Corundum Mullite Castable Introduction
Corundum mullite refractory castable is a kind of refractory castable which contains Al2O3 more than 70%. It is made from corundum, mullite, dispersant and coagulant according to a certain proportion. Corundum mullite brick features with high temperature strength, wear resistance, high thermal conductivity, good thermal shock resistance and air tightness. In addition, it cures fast with high strength at the early stage. Corundum mullite castable is widely used in circulating fluidized bed boiler, metallurgy, oil chemical, thermal power, and other industries.
Corundum Mullite Castable Properties
High strength
Good wear resistance
High thermal conductivity
Good thermal shock resistance
Good high temperature volume stability
High crushing strength,
Corundum Mullite Castable Physical & Chemical Index
Items | RSCM-1 | RSCM -2 | RSCM -3 | |
AL2O3 | ≥70 | ≥75 | ≥85 | |
SiO2 | ≤25 | ≤17 | ≤13 | |
Fe2O3 | ≤1 | ≤1 | ≤1 | |
Bulk Density g/cm3 | ≥2.7 | ≥2.8 | ≥2.9 | |
Cold Crushing Strength MPa | 110℃×24h | ≥100 | ≥110 | ≥120 |
1100℃×3h | ≥100 | ≥110 | ≥120 | |
1400℃×3h | ≥115 | ≥120 | ≥125 | |
MOR MPa | 110℃×24h | ≥15 | ≥15 | ≥15 |
1100℃×3h | ≥16 | ≥17 | ≥18 | |
1400℃×3h | ≥17 | ≥18 | ≥19 | |
0.2MPa Refractoriness Under Load ℃ | ≥1450 | ≥1480 | ≥1500 | |
Thermal Shock Resistance, Times, [900℃, water-cooling] | ≥25 | ≥25 | ≥25 | |
Maximum Service Temperature,℃ | 1550 | 1550 | 1600 | |
Linear Dimensional Change % | ≤-0.3 | ≤-0.2 | ≤-0.2 |
Corundum Mullite Castable Application
Steel furnaces
Iron making furnaces
Glass kiln
Ceramic tunnel kiln
Cement kiln
lining of large power station boiler
Corundum Mullite Castable Manufacturer
Corundum mullite refractory castable produced by RS refractory manufacturer adopts high quality raw material and through strict quality control, which can meet client’ s quality requirement. RS refractory supplier is specialized in producing various high quality refractory castables, if you have any purchase plan for refractory castables, please feel free to contact with us!