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  • Black Carborundum Powder For Sand Blasting - China

    price: contact company for price

    1.Black Silicon Carbide

    Black Silicon Carbide is produced at high temperature in

    an electric resistancetype furnace with quarts sand and

    petroleum coke as its main raw materials.Its hardness is

    between fused alumina and synthetic diamond.Mechanical

    intensity of it is higher than fused alumina.It is brittle

    and sharp and has electrical and heat conductivity in some


    2. Black Silicon Carbide Chemical Analysis and Grain Size

    Distribution (F24-F220)

    F24 F36 F60 F80 F120 F180 F220

    SIC 98.48 98.46 98.6 98.6 98.5 98.5 98.5

    Fe2O3 0.32 0.31 0.28 0.32 0.26 0.31 0.33

    F.C. 0.16

    Coarse Grit 20 15 9 22 15 5.6


    Basal Grit 49 65 67 63 49 59.4


    Mixed Grit 76.5 84 90.2 77 82.5 81.4


    Fine Grit 0.3 0.1 0.3 0.5 0.4 0.5

    3.Black Silicon Carbide Chemical Analysis and Grain Size

    Distribution (F320-F1200)

    F320 F400 F600 F800 F1000 F1200

    SIC 98.5 98 97.55 97 97.24 97

    Fe2O3 0.4 0.4 0.36 0.4 0.25 0.4


    ds3 49 32 19 14 10 7

    ds50 29.2±1.5 17.3±1.0 9.3±1.0

    6.5±1.0 4.5±0.8 3.0±0.5

    ds95 16.5 8 3 2 1 1(80%)

    3. .Black Silicon Carbide Primary manufacturing equipment

    Equipment catalog Quantity Equipment catalog


    16, 500 watts refining furnace 3 “star

    model”crusher 15

    22, 500 watts refining furnace 1 Raymond mill 2

    Jaw crusher 6 Ultrasonic sifting 20

    Induced draft ball mill 2 Acid/alkali cleaning tank


    Air flow classifier 15 Magnetic separator 8

    4.other special specification and other standard graded

    powder is available on request

    5. Manufacturer brief

    Zhengzhou Yellow River (ZYR) Abrasives Co. Ltd, which was

    founded in 1976, is a main manufacturer of abrasive material

    in China. We refine and process abrasive material including

    Black & Green Silicon Carbide, White, Brown Fused Aluminum

    Oxide. The production and quality are in accord with GB,

    ISO, JIS, Standard or conform to specific request.

    Company Contact:

    • Phone: 8637167624454

    • Address: E/18F BO.AO Building, Zhongyuan Road,, zhengzhou , China

    • Email: Email

    Published date: May 14, 2013 -

    • Business Description: Zhengzhou Yellow River Abrasives Co., Ltd. (ZYR), which was

      established in 1976, is a famous enterprise which takes abrasives as

      its key industry in China. We can supply types of abrasives, including

      black silicon carbide, green silicon carbide, white fused aluminum

      oxide, brown fused aluminum oxide; and the bonded abrasives, coated

      abrasives & super abrasives products. The specification and the

      standard are available on request.We produce the crude lumps with

      petroleum coke of good quality. And we own the laboratory certificated

      by China Commodity Inspection Quarantine Bureau. With the head office

      in Zhengzhou, ZYR has set up offices in Shanghai, Guangzhou, Shenzhen,

      etc. For about 30 years, our abrasives sell well in the country and in

      the market abroad such as European countries, U.S.A., India, Pakistan,

      Japan, Korea, etc. .

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