Products
Tundish Refractories
Everything between ladle and mould — working linings, flow modifiers and nozzles for clean, stable casting.
Hofai equips tundishes end to end: permanent and working linings, impact area protection, flow control of steel in the tundish, and the nozzles feeding the mould. Solutions are designed for long sequence casting and low steel-temperature loss.
Product range
Dry Vibration Mixes
Magnesia-based dry working linings installed against a former — no water, fast turnaround.
- Fast heat-up, easy deskulling
- Long sequence capability
Tundish Spray Mixes
Magnesia spray-applied working linings for conventional practice.
- High adhesion, low rebound
- Insulating backup grades
Impact Pads
Precast turbulence-suppressing pads that protect the tundish floor and improve inclusion flotation.
- Engineered flow geometry
- Extended tundish life
Dams, Weirs & Baffles
Precast flow modifiers to optimise residence time and steel cleanliness.
- CFD-informed designs
Upper Tundish Nozzles
Zirconia-insert upper nozzles for stable throughput over long sequences.
- ZrO₂ insert, alumina body
- Matched to QC systems
Tundish Precast Shapes
Well blocks, seat blocks and cover components, pre-fired and ready to set.
- Tight dimensional tolerance
Typical properties
Typical values for reference only — detailed datasheets available on request.
| Property | Dry vibe mix | Spray mix | Impact pad | Upper nozzle (ZrO₂ insert) |
|---|---|---|---|---|
| MgO (%) | ≥ 80 | ≥ 75 | — | — |
| Al₂O₃ (%) | — | — | ≥ 85 | ≥ 88 / ZrO₂ ≥ 94* |
| Bulk density (g/cm³) | ≥ 2.15 | ≥ 1.90 | ≥ 2.90 | ≥ 3.20 |
| CCS (MPa, 1500 °C) | ≥ 8 | ≥ 6 | ≥ 50 | ≥ 60 |
| Service temp. (°C) | 1700 | 1650 | 1750 | 1750 |
Applications
Slab, bloom and billet casters; single- and multi-strand tundishes; long-sequence and clean-steel practice. Former design and installation guidance included with lining packages.