Silimanite refractory brick for glass furnace

Al₂O₃ %               ≥

65

Fe₂O₃ %                 ≤

0.5

SiO₂ %          ≤

32

Bulk density g/cm³            ≥

2.5

Apparent porosity %       ≤

18

Cold crushing strength Mpa ≥

80

0.2Mpa  R.U.L ℃T0.6     ≥

1650