Porosint 750
The 1400 °C grade, and the more capable brick on every count: lighter at 0.50–0.60 g/cc, stronger at 12–20 kg/cm², and lower in conductivity at 0.16–0.22 kcal/m/hr/°C at 800 °C hot face. Alumina runs 42–47% against the 500's 38–43%.
| NATURE OF BOND | CHEMICO – CERAMIC |
|---|---|
| Maximum Service Temperature | 1400 ºC |
| Reversible Thermal Expansion | 0.60% at 1000°C |
| Al₂O₃ content, % | 42.00 – 47.00 |
| Fe₂O₃ content, % | 0.90 – 1.10 |
| Bulk density, g / cc | 0.50 – 0.60 |
| Cold crushing strength, kg/cm² | 12 – 20 |
| PLC, % after heating at 1250 ºC / 24 hrs | + 0.3 to - 0.7 |
| Thermal Conductivity Kcal/m/hr/ºC at 800ºC HF | 0.16 – 0.22 |
Values as published by the manufacturer. Manufacturer TDS governs.
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