Sizes of brown fused alumina haixu abrasives produce
Brown fused alumina,also called brown corundum,brown aluminum oxide,is made from bauxite,with 95% aluminum oxide.
Zhengzhou haixu abrasives co.,ltd,founded in 1999, have been in producing brown fused alumina BFA for more than 20years.
For brown fused alumina BFA,we mainly produce brown fused alumina macrogrit and brown fused alumina micropowder.
Brown fused alumina macrogrit
The sizes and main diameter of brown fused alumina macrogrit is as follows:
1.Feap standard
| Size | main diameter（um) | size | main 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 |
2.JIS standard
| Size | main diameter（um) | Size | main diameter（um) |
| #12 | 2000-1700 | #60 | 300-250 |
| #14 | 1700-1400 | #70 | 250-212 |
| #16 | 1400-1180 | #80 | 212-180 |
| #20 | 1180-1000 | #90 | 180-150 |
| #24 | 850-710 | #100 | 150-125 |
| #30 | 710-600 | #120 | 125-106 |
| #36 | 600-500 | #150 | 106-75 |
| #40 | 500-425 | #180 | 90-63 |
| #46 | 425-355 | #220 | 75-53 |
| #54 | 355-300 |
3. P standard
| Size | main diameter（um) | Size | main diameter（um) |
| P12 | 2000-1700 | P60 | 300-250 |
| P16 | 1400-1180 | P80 | 212-180 |
| P20 | 1000-850 | P100 | 180-150 |
| P24 | 850-710 | P120 | 125-106 |
| P30 | 710-600 | P150 | 106-90 |
| P36 | 600-500 | P180 | 90-75 |
| P40 | 425-355 | P220 | 75-63 |
| P50 | 355-300 |
The sizes and D50 value of brown fused alumina mircorpowder is as follows:
Brown fused alumina micropowder
1.Fepa Standard
| Size | D50(um) | Size | D50(um) |
| F230 | 53.0±3.0 | F360 | 22.8±1.5 |
| F240 | 44.5±2.0 | F500 | 12.8±1.0 |
| F280 | 36.5±1.5 | F600 | 9.3±1.0 |
| F320 | 29.2±1.5 | F800 | 6.5±1.0 |
2,JIS standard:#240 #280
| Size | D50(um) | Size | D50(um) |
| #240 | 57.0±3.0 | #700 | 17.0±1.5 |
| #280 | 48.0±3.0 | #800 | 14.0±1.0 |
| #320 | 40.0±2.5 | #1000 | 11.5±1.0 |
| #360 | 35.0±2.0 | #1200 | 9.5±0.8 |
| #400 | 30.0±2.0 | #1500 | 8.0±0.6 |
| #500 | 25.0±2.0 | #2000 | 6.7±0.6 |
| #600 | 20.0±1.5 |
3. P standard
| Size | D50(um) | Size | D50(um) |
| P240 | 58.5±2.0 | P800 | 21.8±1.0 |
| P280 | 52.2±2.0 | P1000 | 18.3±1.0 |
| P320 | 46.2±1.5 | P1200 | 15.3±1.0 |
| P360 | 40.5±1.5 | P1500 | 12.6±1.0 |
| P400 | 35.0±1.5 | P2000 | 10.3±0.8 |
| P500 | 30.2±1.5 | P2500 | 8.4±0.5 |
| P600 | 25.8±1.0 | P3000 | 6.7±0.5 |