KORUND BENÁTKY, s.r.o. - White Corundum

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 analysis typical analysis
Al₂O₃ 99.50 % min. 99.60 %
Fe₂O₃ 0.20 % max. slight amount
SiO₂ 0.10 % max. 0.056 %
CaO 0.10 % max. slight amount
Na₂O 0.28 % max. 0.21 %
loss by ignition 0.20 % max. 0.10 %
3.
Physical poperties:
1. 3.1.
  Magnetic separation
  magnetic separation metal particulares
  F240 – F280 0.50 % max. 0.30 % max.
2. 3.2.
  Bulk density
  1400g/dm³ min.
3. 3.3.
  Sieving analysis
  size of grains specific size in mm content in % according to the weight
  Above the sieve: 0.063 5 % max.
  0.050 25 % max.
  Under the sieve: 0.040 and lower difference to 100 %
4. 3.4.
  Color
  white

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