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SK-36 Item Standard
AI2O3(%) 55
Fe2O3 (%) 2.0
Refractoriness (SK) 36
Refractoriness under load, 0.2MPa, Ta, ((°C) 1450
Porosity (% 20-24
Bulk density (g/cm³) 2.2-2.30
Cold crushing strength (MPa) 45
Thermal expansion at 1000°C (%) 0.3
SK-38
Item Standard
AI2O3(%) 75
Fe2O3 (%) 2.0
Refractoriness (SK) 38
Refractoriness under load, 0.2MPa, Ta, ((°C) 1520
Porosity (% 20-22
Bulk density (g/cm³) 2.4-2.5
Cold crushing strength (MPa) 55
Thermal expansion at 1000°C (%) 0.2
