Description
Corundum refractory castable is mainly made of corundum aggregates and powders, binders (such as calcium aluminate cement), and additives. Corundum castable is mostly used for working linings in the tapping yard of large and medium-sized blast furnaces, with good wear resistance, thermal shock resistance and corrosion resistance.
Specifications
| Items | Properties | |
| Composition / (%) | Al2O3 | ≥62.0 |
| SiC+C | ≥16.0 | |
| Bulk Density / (g/cm³) | 110℃×24 h | ≥2.90 |
| 1450℃×3h | ≥2.85 | |
| CCS / (MPa) | 110℃×24 h | ≥20.0 |
| 1450℃×3h | ≥40.0 | |
| HPLC / (%) | 1450℃×3h | 0～+0.3 |
Advantages of Corundum Castable
- High Hot Strength
Corundum castable is mainly made from high-purity corundum with high alumina content. It maintains good structural strength at elevated temperatures and is less likely to soften, deform, or suffer a significant loss of strength. - Strong Chemical Corrosion Resistance
Corundum has excellent chemical stability and resists corrosion from acidic and alkaline media as well as high-temperature molten substances, helping slow erosion, penetration, and material damage. - Excellent Abrasion Resistance
With the high hardness of corundum and a dense castable structure, corundum castable provides strong resistance to abrasion caused by particle impact and mechanical friction, reducing thinning, loosening, and surface peeling. - Good Thermal Shock Resistance
Corundum castable performs well during repeated heating and cooling cycles. Its stable structure helps reduce cracking, spalling, and loosening caused by rapid temperature changes.
Product Size: We offer refractory brick sizes that comply with ISO, EN, ASTM, JIS, etc, and customized sizes.
Applications
Corundum castable is commonly used in high-temperature furnaces in metallurgy, building materials and other industries, such as blast furnace iron ditch, ladle lining and other parts.
Our services: refractory technicians, refractory installation drawings, refractory bricks and castables, refractory masonry services, refractory mixes and precast cell, special shaped bricks, insulation materials, installation supervision, accident investigation and resolution, other customized services.
