Project

Silica brick for coke oven

Silica brick for glass kiln

Furnace bottom and wall

other

BG-96A

BG-96B

BG-95A

BG-95B

SiO2% not less than

94

96

96

95

95

Fe2O3 %ot less than

/

0.8

1.0

1.2

1.2

0.2MPa load softening temperature ℃, not lower than

1650（Cemented silica 1620）

1680

1670

1660

1650

Furnace melting index: brick with single weight less than 20kg shall not be more than

Bricks with single weight ≥ 20kg shall not be more than

/
/

0.5
0.6

/
/

0.7
0.7

/
/

True density g / cm3 not greater than

2.34       2.35

2.34

The true density g / cm3 is not more than the change% of reheating line 1450 ℃× 2H

+0.2        0

/

Apparent porosity% not greater than

22（23）

24

22（24）

Coefficient of thermal expansion 1000 ℃% not more than

1.28

1.30

/

Normal temperature compressive strength MPa not less than

Bricks with single weight < 20kg

Bricks with single weight ≥ 20kg

30

25

35（30）
30（25）