洛阳同昌耐火材料有限公司

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    Brown Aluminium Oxide (A-20B)

    • 型号A-20B

    We produce this kind of Brown Aluminium Oxide grain normally used in blasting or polishing applications, such as removal of oil, grease, dirt, loose mill scale, lacquer kicking off, cloth grinding, glass blasting and other applications. Usually we call it blasting grade BFA sand.

    1. 详细信息

    We produce this kind of Brown Aluminium Oxide grain normally used in blasting or polishing applications, such as removal of oil, grease, dirt, loose mill scale, lacquer kicking off, cloth grinding, glass blasting and other applications. Usually we call it blasting grade BFA sand.

    Typical Chemical Analysis

    Al2O3Fe2O3TiO2SiO2

    92.13%

    2.38%2.98%2.10%

    Physical Properties
    ColorDark brown
    ShapeBlocky, tough and sharp
    Crystal FormAlpha-alumina trigonal system
    True Specific Gravity3.96 g/cm3
    Hardness2090 Knoop scale; 9.0 Mohs scale
    Melting Temperature 

    About 2050 ℃

    Grain Size Distribution

    Loose grains.

    Grit Sizes (F)

    81214162022243036404654
    60708090100120150180220240280320

    Bulk Density Test Value (g/cm3)

    Grit NoF12F14F16F20F24F30F36F40F46
    B.D1.79-1.871.76-1.841.74-1.821.72-1.801.70-1.781.68-1.761.66-1.741.63-1.711.61-1.69
    Grit NoF54F60F70F80F100F120F150F180F220
    B.D1.59-1.671.57-1.651.54-1.621.51-1.591.48-1.561.45-1.531.43-1.521.41-1.491.40-1.48


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