White Aluminum Oxide(WA)

imageFeatures: White aluminum oxide has white color and a litter higher hardness and toughness comparing with the brown one.

Application: The grinding tools made of this material are suitable for fine grinding of higher carbon steel, high-speed steel and stainless steel. Abrasive powder of finer grit sizes can also be used for precision casting and high-grade refractory materials.

Physical Characteristics
Item White Aluminum Oxide
Basic mineral ∝-Al2O3
Crystal Color White
True Density >3.90g/cm3
Bulk density 1.75-1.95g/cm3
Mohs hardness 9
Knoop Hardness 2200-2300kg/mm2
Usage For vitrified wheels For Resinoid Bond For Coated Abrasives
Type & Grade WA WA-B WA-P1
Symbol Range of the Grain Chemical Composition(%,by weight) True Density Shape of the Grain
WA F12~80 ≥ 98.50 ≤ 0.40 ≥ 3.90 Blocky
F90~150 ≥ 98.00 ≤ 0.40
F180~220 ≥ 98.00 ≤ 0.40
F230~400 ≥ 97.50 ≤ 0.50
F500~1200 ≥ 97.00 ≤ 0.60
WA-B F12~80 ≥ 99.00 ≤ 0.40 ≥ 3.90 Blocky
F90~150 ≥ 98.50 ≤ 0.40
F180~220 ≥ 98.00 ≤ 0.40
F230~600 ≥ 97.50 ≤ 0.50
WA-P1 F16~80 ≥ 99.00 ≤ 0.40 ≥ 3.90 Needle Shape
F100~150 ≥ 98.50 ≤ 0.40
F180~400 ≥ 98.00 ≤ 0.50
F500~1200 ≥ 97.50 ≤ 0.60

Note: Special requirements on chemical composition can be satisfied through discussion.

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