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Clay Brick

  • Product Description:

    Clay brick with clay, gangue as the main raw material, through the mud material processing, molding, drying and roasting, clay brick is also known as fire brick.

  • Product Features:

    Clay brick, its Al2O3 is generally more than 40%, Fe2O3 is less than 2.0 ~ 2.5%. Clay brick  has weakly acidic at high temperature and has poor performance in resistance to alkaline and slag erosion, but it increases with the increase of Al2O3 content

  • Application:

    Clay brick has the characteristics of goodthermal shock stability, low porosity, high softeningtemperature and high refractoriness. It is widelyused in metallurgy, building materials, chemicalindustry and other industries. It is the first choicefor the permanent liner of thermal equipment.
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Physical and chemical indicators

Fired clay brick
Item SK-30 SK-32 SK-34 SK-35
Refractoriness, ℃ 1670 1710 1750 1770
Chemical composition Al2O3, % 30 35 38 45
Fe2O3, % 2.5 2.5 2 2
Refractoriness under loading 0.2Mpa, ℃（≥） 1250 1350 1370 1420
True porosity, % 22-26 20-24 20-22 18-20
Bulk density, g/cm3 1.9-2.0 1.95-2.1 2.1-2.2 2.15-2.22
Cold crushing strength, MPa ≥20 ≥25 ≥30 ≥40

 

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