Introduction
Alumina-silicon carbide bricks for hot metal ladles are manufactured from high-alumina bauxite, corundum, silicon carbide and flake graphite as primary raw materials, with special additives to enhance performance. The product delivers excellent thermal shock resistance, strong resistance against slag corrosion and superior resistance to iron erosion. Available in JH-ASCC55, JH-ASCC60 and JH-AMC-T grades with alumina content ranging from 52% to 70%. Widely used as working linings for hot metal ladles and torpedo cars in ironmaking and hot metal pretreatment processes.
Key Advantages
01
Excellent Thermal Shock Resistance
Withstands rapid temperature fluctuations during hot metal charging and tapping, preventing cracking and spalling under cyclic thermal stress.
02
Strong Slag & Iron Erosion Resistance
Resists chemical attack from acidic slag and mechanical erosion from flowing hot metal, ensuring extended service life.
03
Superior Anti-Oxidation Performance
Special additives and dense microstructure minimize oxidation of carbon and silicon carbide components, preventing structural loosening and premature failure.
Specification
| Item | JH-ASCC55 | JH-ASCC60 | JH-AMC-T | |
| Chemical Composition (%): ≥ | Al₂O₃ | 52 | 60 | 70 |
| SiC+C | 15 | 15 | 5 | |
| MgO | 3 | |||
| Bulk Density (g/cm³): ≥ | 200℃×24h | 2.75 | 2.9 | 2.9 |
| 1450℃×3h | 2.70 | 2.85 | 2.85 | |
| Linear Change Rate (%) | 1450℃×3h | 0~+1 | 0~+1 | 0~+1 |
| Cold Crushing Strength (MPa): ≥ | 200℃×24h | 40 | 45 | 50 |
| 1450℃×3h | 60 | 60 | 60 | |
| Modulus of Rupture (MPa): ≥ | 200℃×24h | 8 | 8 | 8 |
| 1450℃×3h | 15 | 15 | 15 | |
