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Alumina-magnesia refractory castables
The refractory castable using with corundum aluminum magnesia spinel and fused magnesite as raw materials,which is made of micro-power technology and additive agent.
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The refractory castable using with corundum aluminum magnesia spinel and fused magnesite as raw materials,which is made of micro-power technology and additive agent.
Performance:
The refractory castable is used for large and middle ladle lining and also can be made into casting brick.
Brand
Index
GMJ-80
LMJ-70
LMJ-65
LMJ-60
chemical %
Al2O3
≥80
≥70
≥65
≥60
MgO
≥8
≥8
≥8
≥8
bulk density g/cm3
110°C×24h
≥2.75
≥2.65
≥2.5
≥2.4
drying linear change %
110°C×24h
0- -0.4
0- -0.4
0- -0.4
0- -0.4
rupture strength MPa
110°C×24h
≥5
≥6.5
≥7.5
≥7.5
CCS
≥15
≥20
≥25
≥20
initial setting time min
≥45
≥45
≥45
≥45
final setting time h
≤24
≤24
≤16
≤16
working temperature °C
≥1730
≥1730
≥1700
≥1680