indexitemSilica brickSilica brick for hot stovesGZ-95GZ-94GZ-93LRG-95Lattice brickSiO2% ≥9594939595thermal expansion(10000C)% ≤1.261.260.2MPa refractoriness under load 0C ≥1650-1620--linear change after heating%((14500C×2h)+0.2apparent porosity% ≤2223252223cold crushing strength MPa ≥29.424.519.63530true density g/cm3 ≤2.372.382.392.352.350.2MPa creep rate (15000C×50h)% ≤0.80.8