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    • Shijiazhuang Kedahua Imp. & Exp. Trade Co., Ltd. Follow
    • Vermiculite,Mica,Vermiculite Board,Perlite,Tourmaline
      Floor 19, Ximeiwuzhou Building, Huai'an East Road, Yuhua District, Shijiazhuang, Hebei, China (Mainland)
      Totally has 1 empolyees in Tradesns

    calcined alumina for refractories
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    • Place of Origin:
      Hebei, China (Mainland)
    • Brand Name:
      K.D.H
    • Model Number:
      All models
    • Material:
      Alumina Block
    • Usage:
      Abrasives
    • Abrasive Grain Sizes:
      all
    • color:
      brown,white
    • Use:
      Production Abrasives
    • Chemical Composition:
      Al2O3 SiO2 Fe2O3 TiO2
    • place of origin:
      Hebei,China
    • Brand:
      K.D.H
    • port:
      tianjin port
    • payment:
      tt.lc
    • Deliverability: 1000 Ton/Tons per Month MORE
    • Port: tianjin port
    • US $ 599-799/Ton(Minimal Quantities 5Ton)
    Xueyan·Bai
    General Manager
    Chat online
    Shijiazhuang Kedahua Imp. & Exp. Trade Co., Ltd.
    China Hebei Shijiazhuang
    Manufacturer,Trading Company
    11 - 50 People
    Export Model:Have Own Export License
    Export Identification:Alibaba.com certificated suppler certificate
    Main Products:Vermiculite,Mica,Vermiculite Board,Perlite,Tourmaline
    • Products Description
    • Review List
      Quick Details
    • Place of Origin:
      Hebei, China (Mainland)
    • Brand Name:
      K.D.H
    • Model Number:
      All models
    • Material:
      Alumina Block
    • Usage:
      Abrasives
    • Abrasive Grain Sizes:
      all
    • color:
      brown,white
    • Use:
      Production Abrasives
    • Chemical Composition:
      Al2O3 SiO2 Fe2O3 TiO2
    • place of origin:
      Hebei,China
    • Brand:
      K.D.H
    • port:
      tianjin port
    • payment:
      tt.lc

    Specifications

    calcined alumina for refractories
    1, Al2O3: 95% min
    2, Best grinding media
    3, Raw material: bauxite
    4,Passed ISO9001:2000


    calcined alumina for refractories

    1) High AL2O3 content: 95%min 
    2) Professional manufacturer 
    3) Prompt delivery


    Brown Fused Alumina is bauxite, carbon materials, iron filings in the three kinds of raw material through the melting furnace to restore the system obtained brown artificial corundum, and are thus brown corundum. Brown Fused Alumina is the main chemical ingredient AL2O3, its content is 94.5% 1 97%, and the other containing a small amount of Fe, Si, Ti and so on. Corundum because of its high hardness, toughness is good, more used as a grinding material, which is one of the most basic abrasive. Applicable to carbon steel, malleable iron and hard bronze etc. grinding. In addition, in refractory materials, chemical additives, precision casting and anti-slip material also has wider application.

    Main functions:

     (1) as there is high temperature, corrosion resistance, high strength properties, it poured with steel sliding gate, smelting rare metals, special alloys, ceramics, iron-smelting furnace of the lining (walls and tubes); physical and chemical containers , spark plugs, heat-resistant anti-oxidation coating. 

    (2) due to high hardness, wear resistance, high strength characteristics, in the chemical system, used for a variety of reaction vessels and pipelines, chemical pump parts; to do mechanical parts, various molds, such as the Roberts mold, extrusion die nozzle pencil lead, etc.; do tool, die grinding, bullet-proof material, the human body joints, sealing ring mold.               

    (3) corundum insulating materials, such as lightweight corundum brick, corundum hollow ball and fiber products, widely used in a variety of high-temperature kiln furnace walls and roof, both high-temperature insulation again.

     

       

    item

    95

    96 

    97 

    Al2O3 

    ≥95% 

    ≥96% 

    ≥97% 

    SiO2 

    ≤1.2% 

    ≤1.0% 

    ≤0.8% 

    TiO2 

    ≤3.2% 

    ≤3.0% 

    ≤2.0% 

    Fe2O3 

    ≤0.3% 

    ≤0.2% 

    ≤0.2% 

    CaO+ MgO 

    ≤0.6% 

    ≤0.5% 

    ≤0.4% 

    Real demsity 

    ≥3.9 g/cm3 

    Moh's hardness 

    9.0 

    Microhardness 

    2000-2200KG/MM2 

    Clarseness 

    8-5MM   5-3MM   3-1MM   1-0MM 

    16# 24# 30# 36# 46# 60# 70# 80# 90# 100# 120# 

    Fines 

      180F   200F   240F   325F (Fe2O3 ≤0.50%) 

     

     

    Contact.Ms.Alice 86-15613160206.

                    Skype:aliceyin0919

     

     

     

     

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