moderate density insulating castable

Release time: 2017-02-13 10:42:05 Page viewed: 38

Material: moderate density insulating castable (for reformer box / peep door block)

raw material base: insulating aggregate

type of setting: hydraulical

installation: casting

max. service temperature: 1350 Deg. C

max grain size in mm: 6 mm

water required for casting: 25-33%

physical properties

bulk density: (gm/cm cu) (max.): 1.4

cold crushing strenght (kg/sq.cm.) (min): 

       after drying at 110 Deg. C/24 hrs.: 55

        after heating at 800 Deg. C/3 hrs.: 45

       after heating at 1100 Deg. C/3 hrs.: 35

       after heating at 1300 Deg. C/3 hrs.: 60

permanent linear chage (%) (max)

    after heating at 1100 Deg. C 3 hrs.: ±0.2

    after heating at 1300 Deg. C 3 hrs.: ±0.6

thermal conductivity (kcl/m/hr/deg.c) (max)

    at 500 Deg. C: 0.16

    at 800 Deg. C: 0.18

    at 1100 Deg. C: 0.23

reversible thermal expansion (% max)

    at 1100 Deg. C: 0.5

chemical analysisi (%)

    alumina Al2O3: 40% min

    silica SiO2: 43% max

    iron oxide F2O3: 3.5% max