HOW MANY MICRONS OF BROWN FUSED ALUMINA MANUFACTURED?
Brown fused alumina is made from calcined bauxite.
Zhengzhou haixu abrasives co.,ltd,as manufactuurer of brown fused alumina from China.
We produce brown fused alumina under the standard of FEPA,JIS and P,their PSD of brown fused alumina micropowder is as follows:
FEPA Standard
| Size | D3(um) | D50(um) | D94（um) |
| F230 | ＜82 | 53.0±3.0 | >34 |
| F240 | ＜70 | 44.5±2.0 | >28 |
| F280 | ＜59 | 36.5±1.5 | >22 |
| F320 | ＜49 | 29.2±1.5 | >16.5 |
| F360 | ＜40 | 22.8±1.5 | >12 |
| F400 | ＜32 | 17.3±1.0 | >8 |
| F500 | ＜25 | 12.8±1.0 | >5 |
| F600 | ＜19 | 9.3±1.0 | >3 |
| F800 | ＜14 | 6.5±1.0 | >2 |
JIS Standard
| Size | DO(um) | D3(um) | D50(um) | D94(um) |
| #240 | ≤127 | ≤103 | 57.0±3.0 | ≥40 |
| #280 | ≤112 | ≤87 | 48.0±3.0 | ≥33 |
| #320 | ≤98 | ≤74 | 40.0±2.5 | ≥27 |
| #360 | ≤86 | ≤66 | 35.0±2.0 | ≥23 |
| #400 | ≤75 | ≤58 | 30.0±2.0 | ≥20 |
| #500 | ≤63 | ≤50 | 25.0±2.0 | ≥16 |
| #600 | ≤53 | ≤41 | 20.0±1.5 | ≥13 |
| #700 | ≤45 | ≤37 | 17.0±1.5 | ≥11 |
| #800 | ≤38 | ≤31 | 14.0±1.0 | ≥9.0 |
| #1000 | ≤32 | ≤27 | 11.5±1.0 | ≥7.0 |
| #1200 | ≤27 | ≤23 | 9.5±0.8 | ≥5.5 |
| #1500 | ≤23 | ≤20 | 8.0±0.6 | ≥4.5 |
| #2000 | ≤19 | ≤17 | 6.7±0.6 | ≥4.0 |
P Standard
| Size | D0 µm (max) | D3 µm (max) | D50 µm | D95 µm (min) |
| P240 | 110 | 81.7 | 58.5±2.0 | 44.5 |
| P280 | 101 | 74.0 | 52.2±2.0 | 39.2 |
| P320 | 94 | 66.8 | 46.2±1.5 | 34.2 |
| P360 | 87 | 60.3 | 40.5±1.5 | 29.6 |
| P400 | 81 | 53.9 | 35.0±1.5 | 25.2 |
| P500 | 77 | 48.3 | 30.2±1.5 | 21.5 |
| P600 | 72 | 43.0 | 25.8±1.0 | 18.0 |
| P800 | 67 | 38.1 | 21.8±1.0 | 15.1 |
| P1000 | 63 | 33.7 | 18.3±1.0 | 12.4 |
| P1200 | 58 | 29.7 | 15.3±1.0 | 10.2 |
| P1500 | 58 | 25.8 | 12.6±1.0 | 8.3 |
| P2000 | 58 | 22.4 | 10.3±0.8 | 6.7 |
| P2500 | 58 | 19.3 | 8.4±0.5 | 5.4 |
From above forms,we can produce from 6mcrons to 60microns brown fused alumina micropowder.