Chemical composition of various white fused alumina used for different abrasives.
| Code | Grit Size Range | Chemical Composition (%) | |
| Al2O3 No Less Than |
Na2O No More Than |
||
| WA | 12#～80# | 98.5 | 0.5 |
| 90#～150# | 98.5 | 0.6 | |
| 180#～220# | 98.2 | 0.7 | |
| W63～W14 | 98 | 0.8 | |
| W10～W5 | 97.5 | 0.9 | |
| WA-B & WA-P |
12#～80# P12～P80 |
98.5 | 0.6 |
| 90#～150# P100～P150 |
98.2 | 0.7 | |
| 180#～220# P180～P220 |
98 | 0.8 | |
| P240～P800 | 98 | 0.8 | |
| P1000～P1200 | 97.5 | 0.9 | |
WA: White Fused Alumina Used for Vitrified Abrasives
WA-B: White Fused Alumina Used for Organic Abrasives
WA-P: White Fused Alumina Used for Coated Abrasives
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