______________________________________________________________________________________ | Brand | | SG-80 SG-85 SG-90 SGTG-60 SGTG-70 SGTG-75 | |____________________|__________________|______________________________________________| | chemical | Al2O3 .MIN | 80 85 90 60 70 75 | | compostion ,% | ZrO2 .MIN | - - - 3 3 3 | | | C .MIN | - - - 5 4 3 | |____________________|__________________|______________________________________________| | Physical | Bulk density, g/cm3 .min | - - - 2.90 3.05 3.10 | | |___________________________ _|______________________________________________| | Properties | crushing strength, | -Distillated | - - - 100 110 120 | | | MPa .min | -Non-soaked | 50 50 50 - - - | | |_______________ |___________________________________________________________| | | Apparent Porosity , | -Distillated | - - - 12 10 10 | | | % .max | -Non-soaked | 50 50 50 - - - | |__________|_______________ |___________ |_____________________________________________ | | Life | 4 HEATS IN SUCCESSIVE USE | |_______________________________________|_____________________________________________|