INS 140
The 1400 °C grade of the same plastically moulded insulating series: 39% alumina, 1.0 g/cc, 63% apparent porosity, 35 kg/cm² cold crushing strength and thermal conductivity of 0.30 kcal/m/hr/°C at 500 °C. It buys 300 °C over the INS 110 for a marginal conductivity penalty.
| NATURE OF BOND | CERAMIC |
|---|---|
| SHAPING | PLASTICALLY MOULDED |
| MAX.SERVICE TEMPERATURE | 1400°C |
| Reversible Thermal Expansion | 0.50% at 1000°C |
| Al₂O₃ content, % | 39 |
| Fe₂O₃ content, % | 2 |
| Bulk density g/cc | 1 |
| Apparent Porosity % | 63 |
| Cold crushing strength kg/cm2 | 35 |
| Refractoriness Orton /°C | 28 / +1646 |
| PLC % after heating at 1400°C / 5 hrs | -1.2 |
| Thermal Conductivity Kcal/m/hr/°C at 500°C HF | 0.3 |
Values as published by the manufacturer. Manufacturer TDS governs.
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