Fepa Standard white corundum size range and D50 value.
White corundum is also called white fused alumina and white aluminum oxide,short for WFA or WA.It is made from aluminum oxide.
Zhengzhou haixu abrasives co.,ltd,as manufacturer of white corundum from China,founded in 1999,has been manufacturing white corundum for more than 20 years.
We produce white corundum under FEPA,JIS and W standard mainly.and take the traditional manufacturing technique to produce it.
Today we just talk about FEPA standard white corundum,the size and its size range and D50 value we produce is as follows:
FEPA standard White corundum macrogrit :
| Grit designation | Mean diameter（um) | Grit designation | Mean diameter（um) |
| F12 | 2000-1700 | F54 | 355-300 |
| F14 | 1700-1400 | F60 | 300-250 |
| F16 | 1400-1180 | F70 | 250-212 |
| F20 | 1180-1000 | F80 | 212-180 |
| F22 | 1000-850 | F90 | 180-150 |
| F24 | 850-710 | F100 | 150-125 |
| F30 | 710-600 | F120 | 125-106 |
| F36 | 600-500 | F150 | 106-75 |
| F40 | 500-425 | F180 | 90-63 |
| F46 | 425-355 | F220 | 75-53 |
FEPA Standard white corundum micropowder D50 value
| 粒度 | 中值D50(um) | 粒度 | 中值D50(um) |
| F230 | 53.0±3.0 | F600 | 9.3±1.0 |
| F240 | 44.5±2.0 | F800 | 6.5±1.0 |
| F280 | 36.5±1.5 | F1000 | 4.5±0.8 |
| F320 | 29.2±1.5 | F1200 | 3.0±0.5 |
| F360 | 22.8±1.5 | F1500 | 2.0±0.4 |
| F400 | 17.3±1.0 | F2000 | 1.2±0.3 |
| F500 | 12.8±1.0 |
Haixu abrasives white corundum production lines
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