FIRECRETE SUPER SPECIAL
The top conventional grade: 68–72% alumina rated to 1700 °C, placed at 8.5–9.5% water, 2.50 g/cc dried, 400 kg/cm² after drying and 350 kg/cm² after firing at 1550 °C. Iron oxide is held to 1.8%, the lowest in the Firecrete range.

| NATURE OF BOND | HYDRAULIC |
|---|---|
| INSTALLATION | VIBRATION CASTING |
| MAX.SERVICE TEMPERATURE | 1700°C |
| MAXIMUM GRAIN SIZE | 5 mm |
| WATER REQUIRED FOR CASTING | 8.5 - 9.5% |
| Al₂O₃ content, % | 68 - 72 |
| CaO | 4.5 |
| Fe₂O₃ content, % | 1.8 |
| Dry density g/cc After drying at 110°C/ 24hrs | 2.50 |
| CCS kg/cm2 After drying at 110°C/ 24hrs | 400 |
| After heating at 1100°C/ 3hrs | 300 |
| After heating at 1550°C/ 3hrs | 350 |
| % Retained on maximum size | 0.5 |
| Refractoriness, Orton /°C | 28/1700 |
| After heating at 1100°C/ 3hrs | -0.05 |
| After heating at 1500°C/ 3hrs | 0.65 |
| PACKING | 25KG BAG |
Values as published by the manufacturer. Manufacturer TDS governs.
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