Products
Castables & Monolithics
HF-series castables, ramming and gunning materials for blast furnace cast house, ladle and general high-temperature service.
The HF series is built on fused alumina, premium bauxite and silicon carbide, combined with composite superfine powders, special binders and antioxidants — delivering high strength, erosion resistance, corrosion resistance and oxidation resistance under molten iron and slag attack.
Product range
Iron Runner Castables (HF series)
Al₂O₃-SiC-C castables for main troughs of large and medium blast furnaces.
- High iron-throughput capability
- Anti-oxidation additive system
- Grades for iron and slag lines
Slag Runner & Tilting Launder Castables
Matched grades for slag ditches, tributary channels and swing/tilting launders.
- Thermal-shock resistant
- Fast repair turnaround
Low-Cement & Self-Flow Castables
High-alumina LCC/ULCC and self-flowing grades for linings, precast and repairs.
- High hot strength
- Pump- and self-flow options
Taphole Clay
Anhydrous taphole clays for reliable plugging and drilling of blast furnace tapholes.
- Stable extrusion behaviour
- Consistent taphole length
Ramming & Gunning Mixes
Basic and high-alumina maintenance materials for hot and cold repair.
- High adhesion, low rebound
Insulating Castables
Lightweight backup linings that cut shell temperature and heat loss.
- Low thermal conductivity
Typical properties
Typical values for reference only — detailed datasheets available on request.
| Property | HF iron line | HF slag line | LCC (Al₂O₃ ≥ 90) | Taphole clay |
|---|---|---|---|---|
| Al₂O₃ (%) | ≥ 70 | ≥ 65 | ≥ 90 | ≥ 45 |
| SiC + C (%) | ≥ 15 | ≥ 20 | — | ≥ 20 |
| Bulk density (g/cm³, 110 °C) | ≥ 2.90 | ≥ 2.85 | ≥ 3.00 | — |
| CCS (MPa, 110 °C) | ≥ 40 | ≥ 35 | ≥ 60 | — |
| MOR (MPa, 1450 °C×3h) | ≥ 8 | ≥ 7 | ≥ 10 | — |
| Linear change (%, 1450 °C) | ±0.5 | ±0.5 | ±0.3 | — |
Applications
Blast furnace cast house: main ditch, tributary and slag ditches, swing launders; ladle and tundish monolithic linings; general furnace repair and maintenance across iron, steel and foundry plants.