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BRICK TYPE
BDRY 85
  
 

    See also
bdry 25
bdry 30
bdry 35
bdry 38
bdry 40
bdry 45
bdry 50
bdry 60
bdry 65
bdry 70
bdry 80
bdry 82
 

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    Products
BRAND NAME BDRY 85
Chemical Composition (wt%):-  

  Silica,          (SiO2)

9.00-12.00

  Alumina,     (Al2O3)

82.00-85.00

  Titania,       (TiO2)

3.00-3.40

  Iron,            (Fe2O3)

1.60-1.65

  Lime,           (CaO)

0.10-0.20

  Magnesia,   (MgO)

0.10-0.15

  Alkalies,      (Na2O + K2O)

0.20-0.30
 Physical And Thermo-Mechanical Properties:-  

  Bulk Density, (g/cm3)

2.78-2.81

  Apparent Porosity, (%)

19-21

  Modulus of Rupture, (kg/cm2)

100-140

  Cold Crushing Strength, (kg/cm2)

600-800

  Linear Thermal Expansion at 1000 oC, (%)

1.00-1.05
  Thermal Conducitivity, (W/m.k)
1. after drying at 400  oC 1.80-1.83
2. after firing at 700     oC 1.83-1.86
3. after firing at 1000  oC 1.86-1.93

  Refractoriness, (oC)

>1880

  Refractoriness under Load, Ta, (oC)

>1600

  Recommded Service Temp, (oC)

>1750
 
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