Introduction
Torpedo cars transport hot metal from blast furnaces to steelmaking shops, with linings subjected to severe thermal shock, slag corrosion and mechanical erosion. These Al₂O₃-SiC-C bricks are formulated for different wear zones: impact zone bricks resist falling iron impact; pool (iron line) bricks withstand molten iron erosion; slag line bricks resist chemical attack from aggressive slags. Manufactured from high-quality raw materials through high-pressure molding, they deliver extended service life and reliable performance.
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 & Erosion Resistance
Resists chemical attack from desulfurization and dephosphorization agents, with low slag penetration and excellent corrosion resistance in slag line zones.
03
Zone Specific Formulations
Available in tailored grades for impact zone, pool and slag line, with optimized alumina and SiC+C content to match specific wear mechanisms in each area.
Specification
Pool Brick (熔池砖)
| Item | JX-ASCC-YR60 | JX-ASCC-YR65 | |
| Al₂O₃ (%) | ≥60 | ≥65 | |
| SiC+C (%) | ≥16 | ≥16 | |
| Apparent Porosity (%) | 200°C×24h | ≤9 | ≤9 |
| Bulk Density (g/cm³) | 200°C×24h | ≥2.8 | ≥2.85 |
| Room Temp. Compressive Strength (MPa) | 200°C×24h | ≥40 | ≥40 |
Slag Line Brick (渣线砖)
| Item | JX-ASCC-YZ65 | JX-ASCC-YZ70 | |
| Al₂O₃ (%) | ≥65 | ≥70 | |
| SiC+C (%) | ≥18 | ≥18 | |
| Apparent Porosity (%) | 200°C×24h | ≤9 | ≤9 |
| Bulk Density (g/cm³) | 200°C×24h | ≥2.85 | ≥2.9 |
| Room Temp. Compressive Strength (MPa) | 200°C×24h | ≥40 | ≥45 |
Impact Zone Brick (冲击区砖)
| Item | JX-ASCC-YC65 | JX-ASCC-YC70 | |
| Al₂O₃ (%) | ≥65 | ≥70 | |
| SiC+C (%) | ≥15 | ≥15 | |
| Apparent Porosity (%) | 200°C×24h | ≤9 | ≤9 |
| Bulk Density (g/cm³) | 200°C×24h | ≥2.9 | ≥2.95 |
| Room Temp. Compressive Strength (MPa) | 200°C×24h | ≥45 | ≥45 |
