High Alumina Castable Refractory Castable

High Alumina castable is mixed by high quality bauxite, Mullite, andalusite or Corundum as aggregate, Silica Powder, α-alumina powder as micro powder, refractory cement as binder, also some additive to make better performance. Formulas are changed according to different applications.
Comparing to conventional dense castable, high alumina castable can be used in the area that have more higher temperature and also have higher cold crushing strength.

Parameter

Item	LAHA75	LAHA80	LAHA85	LAHA95
Service Temp ℃	1600	1650	1700
Bulk Density (g/cm3)	2.5	2.6	2.7	3
(Dried at 110℃)
CCS 110℃	65	70	90	95
(Mpa)  1100℃	55	60	80	85
1500 ℃	80	85	100	110
MOR 110℃	10	11	12	13
(Mpa)  1100℃	9	9	10	12
1500℃	11	12	13	15
Max Grain Size (mm)	6	6	6	6
Chemical  Analysis(%)
Al2O3	75	80	85	95
Fe2O3	2.5	2	1.8	1.2
Application Guidelines
Mixer	P	P	P	P
Placement	V/T	V/T	V/T	V/T
Water/Mixer Temp℃	20±5	20±5	20±5	20±5
Mixing Time(Min):Dry/Wet	2/5	2/5	2/5	2/5
Water %  (Typical)	7-9	7-9	7-9	7-9

 

Applications

Incinerators, Aluminium, Cement Industrial,
Steel Industrial (Ladle, Tundish, Induction Furnace,etc)

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