Gray High Alumina Insulating Castable Refractory For CFB Boiler Dry Impermeable

Al2O3 (%,Min）: 80

B.D (g/cm3, dry off 24h at 110℃, Min): 2.70

C.C.S (Mpa, 3h at 850℃, Min): 25

A.P (%,Max): 22

Al2O3 (%,Min）: 65

B.D (g/cm3, dry off 24h at 110℃, Min): 2.50

C.C.S (Mpa, 3h at 850℃, Min): 70

Thermal Shock Times (3h at 850℃,Min): 30

B.D (g/cm3,Max): 1.2

C.C.S (Mpa,Min): 5.0

Thermal Conductivity （350±25℃，W/m·k, Max）: 0.38

Test Temp for R.L.C (≤2%): 12H at 1500℃

Al2O3/%: ≥65

MgO/%: ≥8

Bulk density / g/cm3 110℃ 24h dry off: ≥2.65

Cold crushing strength /MPa 110℃ 24h dry off: ≥30

Al2O3 (%,Min）: 80

SiO2 (%,Max): 15

B.D (g/cm3): 2.80

C.C.S(Mpa,Min): 815℃*3HRS 95