White Aluminum Oxide(WA)
Features: 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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