High Alumina Castable

Category： High Alumina Castable
Size:Customized
Al2O3 Content: 35% - 90%
Refractoriness: 1500 - 1900℃
Package: woven bag & pallet
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Leadsun 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.

Item	HA75	HA80	HA85	HA95
Service Temp ℃	1600	1650	1700	1750
Bulk Density (g/cm3) (Dried at 110℃)	2.5	2.6	2.7	3.0
CCS 110℃ (Mpa) 1100℃ 1500 ℃	65 55 80	70 60 85	90 80 100	95 85 110
MOR 110℃ (Mpa) 1100℃ 1500℃	10 9 11	11 9 12	12 10 13	13 12 15
Max Grain Size (mm)	6	6	6	6
Chemical Analysis(%) Al2O3 Fe2O3	75 2.5	80 2.0	85 1.8	95 1.2
Application Guidelines Mixer Placement Water/Mixer Temp℃ Mixing Time(Min):Dry/Wet	P V/T 20±5 2/5	P V/T 20±5 2/5	P V/T 20±5 2/5	P V/T 20±5 2/5
Water % (Typical)	7-9	7-9	6-8	6-7