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Physical and chemical indicators of high alumina low cement castables

High aluminum low cement castable is a high quality amorphous refractory. It has the advantages of high density, high strength, low porosity and wear resistance, thermal shock resistance and corrosion resistance. However, if it is improperly baked, it will peel off or explode.

Its physical and chemical indicators are as follows:

Indicators Data
Maximum use Temperature (°C) ≥1400
Refractoriness (°C) ≥1785
Dry Volume Density at 110°C (kg/m³) ≥2800
Cold Compressive Strength (MPa) 110℃ ≥100
1000℃ ≥110
1300℃ ≥140
Reheat Shrinkage (%) 1000℃ < +0.3
1300℃ < +0.7
Thermal Conductivity at 600℃ (W/mK) 2.3
Al2O3 (%) ≥81
SiO2 (%) 11.0
Fe2O3 (%) 1.2

Tags: indicators, high-alumina, low-cement-castables,


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