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Alkali-Resistant Brick for Cement Kilns
Counter 265 Addtime：2006-07-05 17:59:08
Brand name
Item
alkali-resistant brick
High-strength alkali resistant brick
Arch alkali resistant brick
XNJ-30
XNJ-30G
XNJ-35D
Al
2
O
3
%
25-30
25-30
30-35
SiO
2
%
60-70
60-70
Fe
2
O
3
≤%
2
Apparent porosity
25
Cold crushing strength≥MPa
35
70
40
Bulk density≥g/cm
3
2.1
2.2
2.2
Linear change after heating 1200℃*2h%
+0.2~-0.2
+0.15~-0.15
+0.15~-0.15
Refractoriness>℃
1650
1650
1700
Refractoriness under load≥℃
1230
1250
1280
Thermal shock resistances water cycle
10
-
-
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Alkali-Resistant Brick for Cement Kilns