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White Fused Alumina

White fused alumina is made of high-purity low-sodium alumina powder by melting at the high temperature, cooling crystallization, and then crushing. The white fused alumina grit is under strict controlling to keep the grain size distribution and the consistent appearance.

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White Fused Alumina

White fused alumina is made of high-purity low-sodium alumina powder by melting at the high temperature, cooling crystallization, and then crushing. The white fused alumina grit is under strict controlling to keep the grain size distribution and the consistent appearance.

Properties

White, α crystal over 99%, high purity, high hardness, and high toughness, strong cutting force, strong chemical stability, and strong insulation.

  • Mohs hardness:
  • 9
  • Bulk density:
  • 1.75-1.95g/cm3
  • Specific gravity:
  • 3.95g/cm3
  • Volume density:
  • 3.6
  • Melting degree:
  • 2250℃
  • Refractory degree:
  • 2000℃

Advantages

  • Has no influences about the color of processed parts.
  • Can be used in the processes where the iron powder residue is strictly prohibited.
  • Shaping grains are very suitable for wet sandblasting and polishing operations.

Application

  • 01

    Sandblasting, polishing and grinding of metal and glass.

  • 02

    Filling of the paint, wear-resistant coating, ceramic, and glaze.

  • 03

    Making of grinding wheel, sandpaper and emery cloth.

  • 04

    Production of ceramic filter membranes, ceramic tubes, ceramic plates.

  • 05

    For the use of wear-resistant floor.

  • 06

    Sandblasting of circuit boards.

  • 07

    Sandblasting of ships, aircraft engines, train tracks and outer bodies.

  • 08

    Various white fused aluminum oxide grains can be produced according to customers’ different demands.

Used for refractory, castable

Properties 0-1 1-3 3-5m/m F100  F200   F325
Guarantee Value Typical Value Guarantee Value Typical Value
Chemical Composition Al2O3 ≥99.1 99.5 ≥98.5 99
SiO2 ≤0.4 0.06 ≤0.30 0.08
Fe2O3 ≤0.2 0.04 ≤0.20 0.1
Na2O ≤0.4 0.3 ≤0.40 0.35

Used for abrasives,blasting,grinding

Properties Type Grains
8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220#
Guarantee Value Typical Value
Chemical Composition Al2O3 ≥99.1 99.5
SiO2 ≤0.2 0.04
Fe2O3 ≤0.2 0.03
Na2O ≤0.30 0.2

Used for abrasives ,lapping,Polishing

Properties Type Micropowder
"W" W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5
"FEPA" F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000
"JIS" 240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000# 10000#  12500#
Guarantee Value Typical Value
Chemical Composition Al2O3 ≥99.1 99.3
SiO2 ≤0.4 0.08
Fe2O3 ≤0.2 0.03
Na2O ≤0.4 0.25

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