ITEM

STANDARD SILICA BRICK

SILICA BRICK USED IN HOT BLAST STOVE

GZ-95

GZ-94

GZ-93

SO₂%NOT LESS THAN

95

94

93

95

95

REFRACTORINESSNOT LESS THAN

1710

1710

1690

-

-

0.2Mpa  SOFTING POINT UNDER

NOT LESS THAN

1650

-

1620

-

-

APPARENT POROSITY%NOT MORE THAN

22

23

25

22

23

COLD CRUSHING STRENGTHMPa

NOT LESS THAN

29.4

24.5

19.6

35

30

BULK DENSITYg/cm³NOT MORE THAN

2.37

2.38

2.39

2.35

2.35

CREEP SPEED%0.2MPa155050h

NOT LESS THAN

0.8

0.8

THERMAL EXPANSION COEFFICIENT -1000%NOT MORE THAN

1.26

1.26