High-alumina kaolin for refractory manufacturing
Sree Sai Mineral Industries supplies high-alumina kaolin clay as a key raw material for refractory bricks, castables and mortars used in kilns, furnaces and ladles across the metals, cement and glass industries.
Our refractory-grade kaolin is processed for consistent mineralogy, delivering the thermal shock resistance and high-temperature stability that demanding furnace linings require, backed by an in-house quality laboratory and a Certificate of Analysis with every batch.
Where our kaolin is used
Refractory Bricks & Castables
- Fire Bricks
- Insulating Bricks
- Monolithic Castables
- Refractory Mortars
Kiln & Furnace Linings
- Rotary Kiln Linings
- Blast Furnace Linings
- Induction Furnace Linings
- Kiln Furniture
Ladle & Tundish Linings
- Steel Ladle Linings
- Tundish Working Linings
- Ramming Mass
- Crucibles
The role our kaolin plays in your refractory mix
High Alumina Content
Elevated alumina levels for superior refractoriness under load.
Thermal Shock Resistance
Withstands repeated heating and cooling cycles without cracking.
High-Temperature Stability
Maintains structural integrity under sustained furnace temperatures.
Consistent Mineralogy
Batch-to-batch uniformity verified in our in-house QC lab.
Sree Sai RefraMax High-Alumina Kaolin
Sree Sai RefraMax is a high-alumina kaolin developed for refractory bricks, castables and mortars requiring excellent thermal stability and resistance to high-temperature deformation. Consistent mineralogy supports reliable service life across kiln, furnace and ladle linings.
Chemical Composition (Typical)
| Parameter | Typical Value |
|---|---|
| Silicon Dioxide (SiO₂) | 44–46% |
| Aluminium Oxide (Al₂O₃) | 37–40% |
| Iron Oxide (Fe₂O₃) | ≤ 0.65% |
| Titanium Dioxide (TiO₂) | ≤ 0.55% |
| Loss on Ignition (LOI) | 13–15% |
Physical Properties (Typical)
| Property | Typical Value |
|---|---|
| Brightness | 84–89% |
| Moisture | < 1.0% |
| Refractoriness (PCE) | Seger Cone 32–34 |
| +325 Mesh Residue | < 1.0% |
| Bulk Density | 0.85–1.05 g/cc |
Product Advantages
Five grades — from fire bricks to ladle linings
| Product Grade | Al₂O₃ (%) | Fe₂O₃ (%) | Refractoriness | Primary Application |
|---|---|---|---|---|
| SS-RF 100 | 37 | ≤ 0.65 | Good | Fire Bricks |
| SS-RF 200 | 38 | ≤ 0.55 | Better | Castables & Mortars |
| SS-RF 300 | 38 | ≤ 0.45 | High | Kiln & Furnace Linings |
| SS-RF 400 | 39 | ≤ 0.35 | Very High | Ladle Linings |
| SS-RF 500 | 40 | ≤ 0.25 | Premium | Tundish Linings |
* Typical values provided for guidance only. Custom grades can be developed to meet specific process and product requirements.
