White fused alumina for refractories 0-1mm

White fused alumina 0-1 mm is the powder in particle size segment from 0 to 1mm. Powder 0-1 mm can be directly used as refractory materials or further processed into fine powder particles. White fused alumina (WFA) is obtained from the fusion of high purity industrial alumina in electric arc furnaces. WFA is raw material characterized by high hardness, yet friable with high purity, chemical stability, a high melting point, and large crystal size. White fused alumina is used in many applications, including grinding and cutting wheels, refractories and ceramic shapes, coated abrasives, investment casting shells, laminates, coatings, blasting abrasives, lapping and polishing.

Introduce of white fused alumina for refractories 0-1mm:

White fused alumina for refractory is a challenging and chemically resistant material widely used in the refractory and foundry industries for its excellent resistance to molten chemical attack alloys and slag and its high refractoriness (>2000°C). White fused alumina is used as the flour and stucco for the refractory coats; White fused alumina also is a standard refractory material for both prime coats and back-ups. Particle size distributions from fine powder size to refractory size are available to cover the full range requested for refractory application.

Chemical composite and physical properties of white fused alumina for refractories 0-1mm:

Items Grain
Al2O3 99.3%min
SiO2 0.10%max
Fe2O3 0.10%max
Na2O 0.30%max
Melting point(℃) 2250
Real density(g/cm3) 3.90min
Refractoriness (℃) ≥1900
Color White
Size 0-1mm

Product features of white fused alumina for refractories 0-1mm:

  • High hardness: Mohs hardness is 9.0, and Vickers hardness(HV) is 2000-2200.
  • Good toughness: For example, the compressive strength of white fused alumina F120 is 100KN/cm2.
  • High density: The volume density of WFA is 3.6g/cm3.
  • High-temperature resistance with low thermal conductivity and low coefficient of linear expansion. So it can resist thermal shock.
  • PH value: White fused alumina is a neutral substance with a PH value of 7.0-8.0.
  • High resistance to chemical corrosion. White fused alumina is resistant to most acid and alkali materials.

Applications of white fused alumina for refractories 0-1mm:

  • Refractory aggregate for ladle in the steel-making industry.
  • Kiln construction.
  • Furnace building.
  • Refractory bricks.
  • Ceramic Tiles special ceramics.
  • Technical ceramics.

White Fused Alumina(FAQ)

What’s lead time for bulk order?

1)for 5~25 tons, it takes around 10~15days. 2)For 26~200 tons,20-40days We will try to deliver it with the promise of quality guarantee as soon as possible

What is porosity?

Porosity is defined as the gas proportion (cavity volume) of a particle’s total volume. It can be determined using different measurement techniques, such as gas adsorption and mercury porosimetry. With the same grain size and shape, a lower bulk density corresponds to a higher porosity of the grains.

What are the different coated abrasive grain types and their characteristics?

Aluminum Oxide – Aluminum Oxide is brown or reddish in color and a man-made abrasive. It is durable with tough cutting edges. It offers long life and is highly wear resistant even under stress applications. Its applications include aluminum, ferrous metals (including alloy steel), hardwood, and leather. Crocus – Crocus

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