Mineral solutions for iron & steel plants
Sree Sai Mineral Industries supplies refractory-grade kaolin clay used in ladle and tundish linings, continuous casting mould flux and refractory castables across iron and steel manufacturing operations.
Our kaolin grades are processed for high-temperature stability and controlled viscosity behaviour in molten metal handling, helping steelmakers protect equipment and maintain casting quality, backed by an in-house quality laboratory and a Certificate of Analysis with every batch.
Where our kaolin is used
Ladle & Tundish Linings
- Ladle Refractory Linings
- Tundish Working Linings
- Monolithic Refractory Repairs
- Erosion & Thermal Shock Resistance
Continuous Casting Mould Flux
- Slab Casting Mould Powders
- Billet & Bloom Casting Flux
- Lubrication & Heat Transfer Control
- Surface Quality Improvement
Refractory Castables for Steel Plants
- Furnace & Kiln Castables
- Blast Furnace Trough Linings
- Insulating Refractory Formulations
- High-Alumina Castable Blends
The role our kaolin plays in molten metal handling
High-Temperature Stability
Retains structural integrity under sustained molten metal contact.
Controlled Viscosity
Supports predictable flow and melting behaviour in mould flux systems.
Refractoriness & Insulation
High-alumina content protects linings from erosion and heat loss.
Consistent Batch Quality
Uniform composition verified batch-wise in our in-house QC lab.
Sree Sai RefraCast Kaolin
Sree Sai RefraCast is a high-alumina refractory-grade kaolin developed for ladle and tundish linings, continuous casting mould flux and refractory castables used across iron and steel plants. It delivers thermal stability and controlled melting behaviour under sustained high-temperature service.
Chemical Composition (Typical)
| Parameter | Typical Value |
|---|---|
| Silicon Dioxide (SiO₂) | 44–46% |
| Aluminium Oxide (Al₂O₃) | 38–41% |
| Iron Oxide (Fe₂O₃) | ≤ 0.55% |
| Titanium Dioxide (TiO₂) | ≤ 0.70% |
| Loss on Ignition (LOI) | 13–14% |
Physical Properties (Typical)
| Property | Typical Value |
|---|---|
| Refractoriness | High to Premium |
| Moisture | < 1.0% |
| +325 Mesh Residue | < 0.8% |
| Median Particle Size (D50) | 3–6 µm |
| Thermal Shock Resistance | High |
Product Advantages
Five grades — from ladle linings to premium casting flux
| Product Grade | Al₂O₃ (%) | Fe₂O₃ (%) | D50 (µm) | Refractoriness | Primary Application |
|---|---|---|---|---|---|
| SS-IS 100 | 38–39 | ≤ 0.70 | 6.0 | High | Ladle & Tundish Linings |
| SS-IS 200 | 39–40 | ≤ 0.60 | 5.0 | High | Refractory Castables for Steel Plants |
| SS-IS 300 | 39–40 | ≤ 0.50 | 4.5 | Very High | Continuous Casting Mould Flux |
| SS-IS 400 | 40–41 | ≤ 0.40 | 3.5 | Very High | Blast Furnace Trough Linings |
| SS-IS 500 | 41–42 | ≤ 0.30 | 3.0 | Premium | Premium Casting Powders & Flux |
* Typical values provided for guidance only. Custom grades can be developed to meet specific process and product requirements.
