99.5% White Alumina Oxide Used for Bonded Abrasive, Shaped Grain

• Customization: Available
• Artificial Abrasive Type: Corundum Abrasives
• Application: Abrasive Tools
• Model NO.: F12 to F220, JIS240 to JIS4000, f240 to F2500
• Source: Artificial Abrasives
• Particle Size: Abrasive
• Hardness: Conventional Abrasive
• Al2O3: 99.2%
• Color: Brilliant White
• Mohs Hardness: 9
• Bulk Density: 1.5~1.95 G/Cm³
• True Specific Gravity: ≥3.9 G/Cm³
• Grain Shape: Cubic
• Sizes: F12 to F220
• Transport Package: 25kg PP Bags Into Big, 25kg Paper Bags on Pallet.
• Specification: F8 to F220, F240 to F2000
• Trademark: Becens
• Origin: China
• HS Code: 2818109000
• Production Capacity: 3000mt/Year
• Package Size: 1.00cm * 1.00cm * 0.70cm
• Package Gross Weight: 1000.000kg
• Lead Time: 30 days (1 - 100 Tons) ; To be negotiated ( > 100 Tons)

Product Description

White Alumina Oxide also called White Aluminum Oxide, White Fused Alumina, White Corundum. 
White alumina oxide is made from industrial alumina powder, arc smelted at a high temperature of more than 2000 degrees, and then cooled. After crushing and forming, magnetic separation and iron removal, and screening into various sizes.

High-quality white alumina oxide depends on the quality of alumina powder, and the quality of alumina powder depends on the content of alumina and sodium chloride in it. When making white alumina oxide abrasives, the alumina content must be controlled above 98.4%. The content of sodium oxide is not higher than 0.6%, otherwise many substandard products will be produced, so the content of sodium oxide should be strictly controlled. High sodium oxide content will generate a lot of β-alumina, which will affect the properties of white alumina oxide, such as the decrease of crystal hardness of white alumina oxide, the decrease of cutting ability, easy pulverization and broken, low thermal stability and so on.

White alumina oxide is made of aluminum oxide powder which is melted in an electric arc furnace and then cooled and crystallized. Like brown alumina oxide, the smelting time determines whether the charge is fully melted and the carbon is fully volatilized. There is no reduction process in the smelting of white alumina oxide, so the impurities may remain in the crystal structure, which will affect the chemical composition and color of white alumina oxide and reduce the quality of white alumina oxide.

It is widly used to produce abrasive tools, both bonded abrasives and coated abrasives, like grind wheel, cutting wheel, abrasive sandpaper...;  surface treatment, like polishing and sandblasting; precision casting (corundum for precision casting) of ceramic and resin-bonded abrasive tools, and can also be used to manufacture advanced refractory materials, shaped refractory and unshaped refractory, like ramming mass, refractory brick...
 

Typical testing value (F100):


Standard sizes:
F12 to F220; 
P12 to P220; 
#240 to #4000; 
0-1mm, 1-3mm, 3-5mm, -100mesh, -200mesh, -325mesh.
In according with GB, FEPA, JIS, ANSI sieve standards. 
 

Package:
Our packages are ensured strong and safe. We could print marks as your requests, neutral marks, customers logo, no made in China etc.
1000kg and 1250kg bulk bags
40×25kg PP bags into big bag
40×25kg PP bags on pallet
40×25kg paper bags on pallet
50kg paper drums on pallet