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Gunning Material
Counter 272   Addtime：2006-07-05 23:36:57
Item
GM1
GM2
GM3
Chemical composition
MgO
82
80
Bulk density ≥g/cm3
110℃*16h
2.45
2.40
1500℃*3h
2.50
2.50
Cold crushing strength ≥MPa
110℃*16h
15
15
1500℃*3h
20
20
Modulus of rupture ≥MPa
110℃*16h
5
5
1500℃*3h
7
7
LIner change after heating %
1500℃*3h
-2.0~0
-2.5~0
Construction referance additional water quantity %
9-11
9-11
Max.service temperature
1750
1700

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