SILICA BRICKS FOR HOT BLAST FURNACEÂ
ITEM | crown bricks | checker bricks |
SiO2 % | â¥95 | â¥95 |
AP,  % | â¤22 | â¤23 |
CCS, Mpa | â¥35 | â¥30 |
Real density, g/cc | â¥2.35 | â¥2.35 |
Creep rate under 0.2MPa,1500â*5hrs, % | â¤0.8 | â¤0.8 |
Thermal expension at 1000â,   % | â¤1.26 | â¤1.26 |