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White Corundum, sizing F 240 – F 280
KORUND BENÁTKY, s.r.o.


ABRASIVE GRAINS OF WHITE CORUNDUM

sizing F 240 – F 280


  1. Basic informations
    Quality:FEPA Standard 42-2:2006 (EN) F 230 - F 2000
    Structure:aplha alumina
    Typical hardness:2100kg/mm2 by Knoop hardness scale
    Absolute density:3,95 - 3,75 g/cm3
  2. Chemical compound
     guaranteed analysistypical analysis
    Al2O399.50 % min.99.60 %
    Fe2O30.20 % max.slight amount
    SiO20.10 % max.0.056 %
    CaO0.10 % max.slight amount
    Na2O0.28 % max.0.21 %
    loss by ignition0.20 % max.0.10 %
  3. Physical poperties:
    1. Magnetic separation
       magnetic separationmetal particulares
      F240 – F2800.50 % max.0.30 % max.
    2. Bulk density
      1400g/dm3 min.
    3. Sieving analysis
       size of grains specific size in mmcontent in % according to the weight
      Above the sieve:0.0635 % max.
      0.05025 % max.
      Under the sieve:0.040 and lowerdifference to 100 %
    4. Color
      white


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