Guarantee\Brand	HBG-96A	HBG-96B	HBG-96
SiO2 (%)≥	96	96	95.5
Fe2 O3 (%) ≤	0.6	0.8	0.8
Melt Index (%) ≤	0.5	0.6	0.7
0.2Mpa refractoriness under load start temperature (℃) ≥	1680	1680	1660
True Density (g/cm3) ≤	2.34	2.34	2.34
Apparent Porosity (%) ≤	21	21	21
Cold Crushing Strength (Mpa) ≥	40	40	40
Reheating Linear rate of change (%) 1450 × 2h ≤	0.3	0.3	0.3