Brown Fused Alumina Micro Powder

Brown fused alumina micro powder is essential for precision grinding, polishing, compounding, and sandblasting applications due to its uniform and precise grading. Its blocky crystal structure makes it perfect for micro-blasting tasks like silicon wafers and dental castings. It is also used for precise lapping of metal parts with tight tolerances, including seals, piston rings, and pump housings. Additionally, it can be used for plasma spraying to create a wear-resistant surface. This micro powder is suitable for bonded abrasive products such as honing stones and grinding wheels, as well as specialized coated abrasive products.

Physical properties

Hardness:

9 mohs

Grain shape:

angular

Melting point:

approx. 2050°C

Specific gravity:

approx. 3.95–3.97 g/cm3

Bulk density:

(depending on grain size)

approx. 2.17-1.61g/cm3

(depending on size)

Typical chemical analysis

Al2O3:

95.20%

TiO2:

2.60%

Fe2O3:

0.10%

SiO2:

0.70%

CaO:

0.15%

Available grain sizes
(Average grain size)

ds50 value (µm)

FEPA Nr.

Standard werte der Mikro-F-Reihe

JIS Nr.

 

FEPA Nr.

 

F230

53±3.0

#240

60±4.0

P240

58.5±2.0

F240

44.5±2.0

#280

52±3.0

P280

52.2±2.0

F280

36.5±1.5

#320

46±2.5

P320

46.2±1.5

F320

29.2±1.5

#360

40±2.0

P360

40.5±1.5

F360

22.8±1.5

#400

34±2.0

P400

35.0±1.5

F400

17.3±1.0

#500

28±2.0

P500

30.2±1.5

F500

12.8±1.0

#600

24±1.5

P600

25.8±1.0

F600

9.3±1.0

#700

21±1.3

P800

21.8±1.0

F800

6.5±1.0

#800

18±1.0

P1000

18.3±1.0

F1000

4.5±0.8

#1000

15.5±1.0

P1200

15.3±1.0

F1200

3.1±0.5

#1200

13.0±1.0

 

 

 

 

#1500

10.5±1.0

 

 

 

 

#2000

8.5±0.7

 

 

 

 

#2500

7.0±0.7

 

 

 

 

#3000

5.7±0.5

 

Application areas (including but not limited to)

  • Polishing plastics and hardware tools

    Brown fused alumina powder enhances smoothness and brightness, improving the appearance of plastics and hardware tools.

  • Sandblasting (rust removal, glass sandblasting)

    Brown fused alumina powder is used for rust and stain removal, as well as glass sandblasting.

  • Coating abrasive tools

    Brown fused alumina powder coats grinding wheels, ensuring uniform and long-lasting grinding capabilities.

  • Polishing stainless steel workpieces

    Polishing stainless steel pipes: Brown fused alumina powder removes oxidation, scratches, and stains, creating a smooth and glossy surface.

  • Restoration of stainless steel products

    Brown fused alumina powder eliminates scratches, oxidation, and defects, restoring the original brightness and appearance of stainless steel products.

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