Alumina powder

Alumina is a ceramic of chemical composition Al2O3. The structure, the purity, the hardness and the specific surface area are the main characteristics of these powders.

The differences between the products may seem minimal but the physico-chemical properties between two ranges are completely different. The calcination time varies from one range to another, while some alumina are harder, others softer. The granulometries and distributions are also different.

Our wide range of alumina powder will allow you to select the product best suited to your application. Sintering, filling and polishing powders are available. A specific powder to prevent parts sticking during heat treatment is also available.

For specific grain sizes, we can offer customised sieving. Please get in touch.

Main Products

100 Series: Alumina of medium purity, very high hardness, very low porosity and very low surface area.

  • Chemical analysis: Al2O3 > 99.7% Na2O < 0.2%
  • Granulometry: d50 between 1.5μm and 2.35mm
  • Applications: Precision honing and polishing - Precision Sandblasting/Micro sandblasting - Compressed air surface treatment - Electrical insulation

200 Series: Alumina of high purity and hardness, low porosity and a specific surface area.

  • Chemical analysis: Al2O3 = 99.85% Na2O = 0.06%-0.08%
  • Granulometry: d50 between 3μm and 80μm
  • Filler for synthetic resins - Filler for elastomers

300 Series: This series is a little less pure than the 200 series and the specific surface area is a little larger. However, the product 007-0320 is much purer than the other alumina from the 300 and 200 series because it is specially made to measure to prevent smaller parts sticking during heat treatment.

  • Chemical analysis: Al2O3 = 99.7% Na2O = 0.1%
  • Granulometry: d50 = 0.50μm till 80μm
  • Filler for synthetic resins - Filler for elastomers - Anti-stick agent

400 Series: Alumina of medium purity but with a very specific large surface area.

  • Chemical analysis: Al2O3 = 99.6% Na2O = 0.3%
  • Granulometry: d50 between 0.6μm and 80μm
  • Incorporated with certain paints or inks, these alumina make it possible to obtain a particularly hard coating. The fineness of the alumina you use depends on the thickness of the layer of paint or ink.

500 Series: Alumina of lower chemical purity than previous series with a medium surface area.

  • Chemical analysis: Al2O3 = 99.6% Na2O = 0.3%
  • Granulometry: d50 between 3μm and 60μm
  • Filler for synthetic resins - Filler for elastomers

600 Series: Polishing alumina of rather low purity but with the technical characteristics needed for the different stages of polishing.

  • Chemical analysis: Al2O3 = 99.6% Na2O = 0.3%
  • Granulometry: d50 between 3μm and 60μm
  • Common or special industrial sanding/polishing

900 Series: Alumina granules with a large specific surface area, of medium purity and low hardness.

  • Chemical analysis: Al2O3 = 90% till 99.5%
  • Granulometry: d50 between 0.3mm and 10mm
  • Filtration, purification

1000 Series: Alumina with a medium surface area, high purity and medium hardness.

  • Chemical analysis: Al2O3 = 99.6% till 99.8%
  • Granulometry: d50 = 0.05μm till 3μm
  • Metallographic and mineralogical polishing

1100 Series: Alumina with low surface area, high purity and low hardness.

  • Chemical analysis: Al2O3 > 99.8%
  • Granulometry: d50 = 10μm till 80μm
  • Precision polishing

1400 Series: Filling alumina.

  • Chemical analysis: Al2O3 > 99.6%
  • Granulometry: d50 = 150μm
  • Electrical resistance filling

2000 Series: Alumina with a medium surface area, high purity and medium hardness.

  • Chemical analysis: Al2O3 = 99.8%
  • Granulometry: d50 = 0.4μm till 80μm
  • Filler for wear resistance, electrical insulation, electronic components, porous ceramics, catalyst support

3000 Series: Alumina with a low surface area, high purity and high hardness.

  • Chemical analysis: Al2O3 = 99.85%
  • Granulometry: d50 = 15μm
  • High purity polishing - Special filler for synthetic resins and elastomers

4000 Series: Alumina with a low surface area, medium purity and high granulometry-controlled hardness.

  • Chemical analysis: Al2O3 = 99.8%
  • Granulometry: d50 = 80μm till 118μm
  • Micro sandblasting and micro polishing

5000 Series: γ-Alumina with a medium specific surface area, very high purity, low hardness.

  • Chemical analysis: Al2O3 = 99.99%
  • Granulometry: d50 = 0.5μm till 10μm and 0.6μm till 20μm
  • Special high purity filler

5100 Series: Alumina with a high specific surface area, medium purity and high hardness.

  • Chemical analysis: Al2O3 > 99.5%
  • Granulometry: d50 = 0.7μm till 90μm
  • Special filler for synthetic resins and elastomers

5200 Series: Alumina with a specific surface area, medium purity and medium hardness.

  • Chemical analysis: Al2O3 = 99.7% till 99.85%
  • Granulometry: d50 = 0.65μm till 80μm
  • Sanding and polishing

5300 Series: Alumina with low surface area, high purity and high hardness.

  • Chemical analysis: Al2O3 = 99.85%
  • Granulometry: d50 = 3μm
  • Special filler for synthetic resins and elastomers

5400 Series: Alumina with a low specific surface area, high purity and high hardness.

  • Chemical analysis: Al2O3 = 99.60%
  • Granulometry: d50 = 0.6μm
  • Special filler for synthetic resins and elastomers - Nanometric polishing

Characteristics table

Product N°

Ø d50

% Al2O3

Product N°

Ø d50

% Al2O3

007-0160

50µm

99.80

 

007-0900

300-900μm

90.00

007-0161

33µm

99.75

 

007-0910

1000-3000μm

90.00

007-0162

16µm

99.80

 

007-0920

2000-5000μm

97.00

007-0163

12µm

99.80

 

007-0930

2000-7000μm

90.00

007-0164

10µm

99.80

 

007-0940

5000-10000μm

95.00

007-0166

20µm

99.80

 

007-0950

90µm

99.70

007-0167

700µm

99.80

 

007-0960

5µm

99.50

007-0168

600μm

99.80

 

007-1000

0,05µm

99.60

007-0200

7µm

99.80

 

007-1010

0.3µm

99.95

007-0205

4.9µm

99.80

 

007-1020

1µm

99.80

007-0210

4µm

99.80

 

007-1030

0.596μm

99.60

007-0220

3µm

99.80

 

007-1031

0.822μm

99.60

007-0300

80µm

99.70

 

007-1100

35µm

99.90

007-0310

80µm

99.70

 

007-1110

80µm

99.99

007-0320

75µm

99.95

 

007-1120

25µm

99.90

007-0325

15µm

99.80

 

007-1130

10µm

99.80

007-0330

5µm

99.70

 

007-2000

80µm

99.80

007-0340

0.5µm

99.85

 

007-2010

88µm

99.80

007-0350

90µm

99.90

 

007-3000

15µm

99.85

007-0400

100µm

99.60

 

007-4000

118µm

99.80

007-0410

4µm

99.50

 

007-4010

80-90µm

99.80

007-0500

5µm

99.60

 

007-5001

0.5-10 µm

99.99

007-0510

3µm

99.60

 

007-5002

0.6-20 µm

99.99

007-0520

32µm

99.60

 

007-5101

75µm

99.50

007-0600

37µm

99.50

 

007-5102

80µm

99.60

007-0610

10µm

99.70

 

007-5103

90µm

99.60

007-0620

5µm

99.60

 

007-5104

45µm

99.60

007-0630

4µm

99.60

 

007-5105

60µm

99.60

007-0640

3µm

99.60

 

007-5106

30µm

99.50

007-0650

15µm

99.80

 

007-5107

40µm

99.50

007-0660

60µm

99.80

 

007-5201

0.4µm

99.90

007-0670

8µm

99.80

 

007-5202

9µm

99.99

007-0680

90µm

99.70

 

007-5203

18µm

99.85

007-0690

2 mm

99.30

 

007-5301

3µm

99.85

Ceramic powders (1.36M)

Technical datasheet ceramic powders.