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JUCOS Refractories > Shaped Refractories > Special Alumina Brick
Product Details

Special Alumina Bricks are made by high grade of sillimanite,andalusite,mullite, corundum as raw material ,It can resist corrosion of molten and corrosion of industrial slag. with high refractoriness, low creep and mechanical behavior under high temperature, high refractoriness under the load,good thermal shock resistance and slag resistance.


Features Of Special Alumina Brick

  • Good performance in high temp refractoriness under load

  • Higher temperate resistant with good refractoriness

  • Lower impurity content

  • Good thermal shock resistance performance

  • Excellent resistance in slag abrasion

  • Good cold crush strength


Applications Of Special Alumina Brick

  • Lime Kiln Cement Kiln

  • Various Rotary kiln

  • Glass melting Tank

  • Electric Arc Furnace

  • Blast Furnace

  • Chamber Combustor

  • Nonferrous Metal Furnace

  • Various high-temp Furnace

Specifications Of Special Alumina Brick

  • SPecial-alumina refractory birck

  • JUCOS Alumina contents range from 60% to 80%

  • Widely used throughout metallurgical industry


Physical And Chemical Indicators For Special Alumina Brick


                            Brand
   
Properties                                 

SAL80 

SAL75 

SAL70 

SAL60 

Refractoriness (SK)

39

39

38

37

Apparent Porosity (%)

17

18

18

18

Bulk Density (g/cm3)

2.75

2.65

2.65

2.50  

ColdCrushing Strength (MPa)

80

70

70

60

@ 1,000℃
     Thermal Linear Expansion(%)  

0.65

0.65

0.55

0.53

@ 1,500℃ x 2hrs
     Permanent Linear Change(%) 

±0.2

±0.2

1450℃x2h   ±0.2

1450℃x2h   ±0.2

 @0.2MPa
     Refractoriness Under Load (℃)

1,670

1,650

1,600

1,580

Chemical 

Composition (%)

Al2O3

80

76

70

60

Fe2O3

0.8

1.0

1.2

1.2

Main Applications

     Lime Kiln Cement Kiln
     Various Rotary kiln
     Glass melting Tank
     Electric Arc Furnace
     Blast Furnace
     Chamber Combustor 
     Nonferrous Metal Furnace
     Various high-temp Furnace 


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