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Popular Abrasive White Fused Alumina White Aluminum Oxide Powder for Polishing Blasting Lapping Grinding

Product Status: White Powder

Specification: 0.7 um-2.0 um

Hardness: 2100kg/mm2

Molecular Weight: 102

Melting Point: 2010℃-2050 ℃

Boiling Point: 2980℃

Water Soluble: Insoluble In Water

Density: 3.0-3.2g/cm3

Content: 99.7%

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Product Detail

Application

White Alumina Fine Powder

White fused alumina (WFA) has a crystal structure primarily composed of corundum (Al2O3) and is known for its exceptional hardness, strength, and high purity. White fused alumina is available in different forms, including grits, sand, and powder.

Particle Size Specifications
JIS	240#,280#,320#,360#,400#,500#,600#,700#,800#,1000#,1200#,1500#,2000#,2500#,3000#,3500#, 4000#,6000#, 8000#,10000#,12500#
European standard	F240,F280,F320,F360,F400,F500,F600,F800,F1000,F1200,F1500,F2000,F2500,F3000,F4000,F6000
National standard	W63,W50,W40,W28,W20,W14,W10,W7,W5,W3.5,W2.5,W1.5,W1,W0.5

White Alumina Powder Features

1. The Al2O3 purity is high(99%min).

2. High hardness & grinding ability with good grinding efficiency.

3. High wear-resistance

4. Low oil absorption especially for water-based paint.

5. Neutral property with PH value around 7-8.

6. High whiteness

7. Resistant to most corrosive alkali and acid.

8. Resistant to high temperature up to 1900 °C.

9. Good particle size

Chemical Position Standards:
Code and Size Range	Chemical Composition%
Code and Size Range	AI2O3	SiO2	Fe2O3	Na2O
F90-F150	≥99.50	≤0.10	≤0.05	≤0.30
F180-F220	≥99.50	≤0.10	≤0.05	≤0.30
#240-#3000	≥99.50	≤0.10	≤0.05	≤0.30
#4000-#12500	≥99.50	≤0.10	≤0.05	≤0.30

Physics Properties:
Color	White
Crystal form	Triangal crystal system
Mohs hardness	9.0-9.5
Micro hardness	2000-2200 kg/mm²
Melting point	2250
Maximum operating temperature	1900
True density	3.90 g/cm³
Bulk density	1.5-1.99 g/cm³

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White fused alumina is available in different forms, including grits, sand, and powder, and is used in a variety of applications:

Grinding and Polishing: abrasive wheels, belts, and discs for precision grinding of metals, ceramics, and composites.
Surface Preparation: foundries, metal fabrication, and shipbuilding
Refractories: firebricks, refractory castables, and other shaped or unshaped refractory products
Precision Casting: investment casting molds or cores, resulting in high-dimensional accuracy, smooth surfaces, and improved casting quality.
Abrasive Blasting: surface cleaning, etching, and preparation in industries such as metal fabrication, automotive, and aerospace, remove rust, paint, scale, and other contaminants from surfaces without causing damage.
Superabrasives: bonded or coated abrasive tools, high-speed steels, tool steels, and ceramics
Ceramics and Tiles