Introduction
Slag trough castables are engineered specifically for blast furnace slag handling systems where molten slag causes severe chemical and mechanical wear. Formulated with high-alumina aggregates, silicon carbide and special additives, the material delivers high strength at both low and high temperatures, excellent resistance to slag penetration and good thermal shock stability. Available in two grades—JH-TSG and JH-SG—with alumina content ≥60% and SiC+C content ranging from 15% to 18%, providing reliable performance in the most demanding slag trough conditions.
Key Advantages
01
High Mechanical Strength
Cold crushing strength reaches 25–30 MPa at 110℃ and 35–40 MPa at 1450℃, ensuring reliable performance under continuous slag flow.
02
Excellent Slag Erosion Resistance
Strong resistance against chemical attack from molten slag with low slag penetration, significantly extending trough service life.
03
Good Thermal Shock Stability
Maintains structural integrity under rapid temperature changes during tapping, preventing cracking and spalling in service.
Specification
| Item | JH-TSG | JH-SG | Test Condition |
| Chemical Composition (%): ≥ | Al₂O₃ | 60 | 60 |
| SiC+C | 15 | 18 | |
| Bulk Density (g/cm³): ≥ | 110℃×24h | 2.75 | 2.70 |
| 1450℃×3h | 2.70 | 2.65 | |
| Linear Change Rate (%) | 1450℃×3h | -0.5~+0.5 | -0.5~+0.5 |
| Cold Crushing Strength (MPa): ≥ | 110℃×24h | 30 | 25 |
| 1450℃×3h | 40 | 35 | |
| Modulus of Rupture (MPa): ≥ | 110℃×24h | 6 | 6 |
| 1450℃×3h | 8 | 8 |
Packaging: Woven bag — Specifications: 1000kg/bag, 50kg/bag, 25kg/bag
保存Precautions: Keep dry. Do not use if caked
Shelf life: 6 months
