Refractory Concrete Corundum Castable

Model

Properey GS�70 GS�75 GS�80 GS�85
Chemical composition(%) Al2O3� 70 75 80 85
Cold crushing strength(MPa) 110��24h
After drying at 10 12 15 15
600��3h
After firing at 16 20 20 22
1200��3h
After firing at 25 25 26 28
Refractoriness under load (�) -0.2% 1380 1400 1450 1500
-0.4% 1500 1550 1550 1580
Linear changing after burnt (%) 1400��3h
After firing at ±2 ±2 ±1.5 ±1.5
Bulk density (g.cm3) 1400��3h
After firing at 2.6 2.65 2.7 2.8
Refractoriness� (�) 1700 1750 1790 1790
Amount for construction (kgm3) 2800 2850 2900 3000
Application Induction smelting furnace for nonferrous metal and ferrous metal
Characteristic T imeproof Corrosion resistance Thermal shock resistance Spalling resistance Volume stability
High strength Abrasion resistance

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