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Low Na Calcined Alumina (HA) Series Coarse Powder

Features:

  • 1. Unground & Low sodiume
  • 2. Near-spherical crystal
  • 3. Large crystal & Fully developed
  • 4. Less shrinkage & Large output

Parameter

Model No. Chemical Composition (%)  True Density Apparent Density Original Crystal Conversion Rate  Features Recommended Applications
Al2O3 ≥% SiO2 ≤% Fe2O3 ≤% Na2O ≤% LOI ≤% g/cm3 ≥ g/cm3 > D50 (μm) ≥%
HA5 99.5 0.05 0.02 0.12 0.1 3.95 0.9 6.5-8.0 95 1. Unground & Low sodiume
2. Near-spherical crystal
3. Large crystal & Fully developed
4. Less shrinkage & Large output
5. Good quality stability
1. Suitable for high-performance ceramics
2. Suitable for rough polishing
3. Suitable for refractory materials
4. Suitable for thermal conducting fillers
5.  Suitable for wear-resistant coating industries
HA4 99.5 0.05 0.02 0.10 0.1 3.95 0.9 5.5-6.5
HA3 99.5 0.05 0.02 0.12 0.1 3.95 0.9 4.5-5.6
HA2 99.5 0.05 0.02 0.15 0.1 3.93 0.9 3.0-4.0 93 1. Unground, medium sodium
2. Near-spherical crystal
3. Crystal range of 2-3 μm
4. Good sinterability & Large output
5. Good quality stability.
Suitable for ceramics and refractory industries.
HA1 99.7 0.05 0.02 0.01 0.1 3.93 0.9 ~2 93 1. Extremely low impurities
2. Na2O≤ 0.01%
3. High conversion rate
4. Fine and uniform crystal
1. Suitable for high-performance ceramics
2. Suitable for preparation of refractory powder
3. Suitable for wear-resistance coatings industries, etc.
HA2X 99.5 0.10 0.02 0.08 0.1 3.95 0.9 ~3 95 1. Easy to grind
2. Extremely low impurities
3. Good crystal sphericity
4. Narrow cystal distribution
5. Less shrinkage & Large output
6. Good quality stability
1. Suitable for  high-performance ceramics
2. Suitable for LCD glass, refractory materials
3. Suitable for thermally conductive fillers
4. Suitable for medium polishing materials industries, etc.
HA1X 99.5 0.12 0.02 0.10 0.1 3.93 0.9 ~2.3 93 1. Easy to grind & Low sodium
2. Good sphericity
3. Narrow cystal distribution
4. Small crystal & Good flowability
5. Large output & Good quality stability
1. Suitable for the production of high-performance ceramics and refractory fine powder
2. It can be used in alumina ball
HA0X 99.5 0.08 0.02 0.10 0.1 3.9 0.9 ~1 92 1. Small crystal
2. Low impurities.
1. Suitable for the production of high-performance ceramics and refractory powder preparation
2. It can used to preparation of wear-resistant coatings industries, etc
3. It can be used in alumina ball

FAQ for HA series:

  • 1. What's the conversion rate of your HA series?

    There has 95%, 93%, 92% conversion rate for selection.

  • 2. What's the alumina content of your items?

    Usually will more than 99.5%. Special requirements can be supported.

  • 3. What' your Na2O content?
    From 0.01%-0.15%.

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