Lightweight silica bricks


Also known as siliceous thermal insulation brick,it is mainly made of siliceous raw stone as raw material and fired at high temperature with additives.It has the characteristics of high stability,low thermal conductivity,and small changes in the reheating line,and is widely used in industrial kilns such as metallurgy and glass.

  • Also known as siliceous thermal insulation brick,it is mainly made of siliceous raw stone as raw material and fired at high temperature with additives.It has the characteristics of high stability,low thermal conductivity,and small changes in the reheating line,and is widely used in industrial kilns such as metallurgy and glass.

    Item GGR-1.2 GGR-1.0 GGR-0.8 GGR-0.6
    SiO2% 92 92 90 89
    Fe2O3 0.60 0.57 0.52 0.62
    CaO 2.5 2.7 3.0 3.3
    Bulk Density g/cm³ 1.2 1.0 0.8 0.6
    Mpa 5.0 4.5 3.0 2.5
    Fire Resistance ℃ 1640 1620 1610 1600

    Reburning line change %

    ±0.5
    1480℃×2h
    ±0.5
    1450℃×2h
    ±0.5
    1400℃×2h
    ±0.5
    1350℃×2h

       

    Thermal Conductivity W/m·k

    400℃ 0.36 0.30 0.26 0.22
    600℃ 0.39 0.33 0.29 0.25
    800℃ 0.41 0.36 0.31 0.28
    1000℃ 0.44 0.39 0.34 0.31

Keyword:

Lightweight silica bricks


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