Silica Brick for Glass Furnace

BG-95

SiO₂ % ≥

95

Fe₂O₃ % ≤

1.0

Apparent porosity %≤

22

Cold crushing strength Mpa ≥

Single weight ＜20kg

Single weight ≥20kg

30

35

True density g/cm3 ≤

2.34

Permanent linear change 1450℃ 2h %

0–0.2

Residual quartz % ≤

3