White fused alumina
AL2O3: 99.5%Min. Colour is white. Mohs hardness: 9.0
Micropowder is widely used for abrasive media, polishing, grinding, making ceramics, refractory. It has high melting point of 2200 degree centigrade, so it is also used for high temperature resistance characteristic.
Symbol | Range of the grain | Chemical composition (%) | True density | Shape of grain | |
Al2O3 | Na2O | ||||
WA | F12-80 | ≥99.70 | ≦0.2 | ≥3.90 |
Equaled Volume |
F90-150 | ≥99.70 | ≦0.2 | |||
F180-220 | ≥99.50 | ≦0.2 | |||
F230-400 | ≥99.50 | ≦0.25 | |||
F500-1200 | ≥99.0 | ≦0.25 |
White fused alumina micropowder is available at FEPA grade, JIS grade, China GB grade.
CHINA | JIS R6001-1998 | ANSI B74.10- | FEPA42GB-1984 | ||||||||||||
Grit | d50 value | GB2477-83 | GB/T2481.2-1998 | GB/T9258.1-2000 | Grit | d50 value(in µm) | Grit | d50 | Grit | d50 value(in µm) | |||||
Grit | Size | Grit | d50 value | Grit | d50 value | Sediment- | Electric | Standard | Sedigraph
| ||||||
P240 | 58.5±2 | 240 | 60.0±4.0 | 57.0±3.0 | |||||||||||
P280 | 52.2±2 | 280 | 52.0±3.0 | 48.0±3.0 | |||||||||||
F230 | 50.0±3.0 | F230 | 53±3 | P320 | 46.2±1.5 | 320 | 46.0±2.5 | 40.0±2.5 | 240 | 53.5-50 | F230 | 53±3 | 50.0±3.0 | ||
F240 | 42.0±2.0 | F240 | 44.5±2 | P360 | 40.5±1.5 | 360 | 40.0±2.0 | 35.0±2.0 | F240 | 44.5±2 | 42.0±2.0 | ||||
P400 | 35.0±1.5 | 400 | 34.0±2.0 | 30.0±2.0 | 280 | 44-40.5 | |||||||||
F280 | 34.5±1.5 | W63 | 63~50 | F280 | 36.5±1.5 | P500 | 30.2±1.5 | 500 | 28.0±2.0 | 25.0±2.0 | 320 | 36-32.5 | F280 | 36.5±1.5 | 34.5±1.5 |
F320 | 27.7±1.5 | W50 | 50~40 | F320 | 29.2±1.5 | P600 | 25.8±1.0 | 600 | 24.0±1.5 | 20.0±1.5 | 360 | 28.8-25.8 | F320 | 29.2±1.5 | 27.7±1.5 |
F360 | 21.6±1.5 | W40 | 40~28 | F360 | 22.8±1.5 | P800 | 21.8±1.0 | 700 | 21.0±1.3 | 17.0±1.5 | 400 | 23.6-20.6 | F360 | 22.8±1.5 | 21.6±1.5 |
F400 | 16.5±1.0 | W28 | 28~20 | F400 | 17.3±1.0 | P1000 | 18.3±1.0 | 800 | 18.0±1.0 | 14.0±1.0 | 500 | 19.7-16.7 | F400 | 17.3±1.0 | 16.5±1.0 |
F500 | 12.3±1.0 | W20 | 20~14 | F500 | 12.8±1.0 | P1200 | 15.3±1.0 | 1000 | 15.5±1.0 | 11.5±1.0 | 600 | 16-13 | F500 | 12.8±1.0 | 12.3±1.0 |
P1500 | 12.6±1.0 | 1200 | 13.0±1.0 | 9.5±0.8 | |||||||||||
F600 | 9.0±1.0 | W14 | 14~10 | F600 | 9.3±1.0 | P2000 | 10.3±0.8 | 1500 | 10.5±1.0 | 8.0±0.6 | 800 | 12.3-9.8 | F600 | 9.3±1.0 | 9.0±1.0 |
P2500 | 8.4±0.5 | 2000 | 8.5±0.7 | 6.7±0.6 | 1000 | 9.3-6.8 | |||||||||
F800 | 6.3±1.0 | W10 | 10~7 | F800 | 6.5±1.0 | 2500 | 7.0±0.7 | 5.5±0.5 | F800 | 6.5±1.0 | 6.3±1.0 | ||||
F1000 | 4.5±.08 | W7 | 7~5 | F1000 | 4.5±0.8 | 3000 | 5.7±0.5 | 4.0±0.5 | 1200 | 6.5-4.5 | F1000 | 4.5±0.8 | 4.5±0.8 | ||
F1200 | 3.1±0.5 | W5 | 5~3.5 | F1200 | 3.0±0.5 | 4000 | 3.0±0.4 | F1200 | 3.0±0.5 | 3.1±0.5 | |||||
F1500 | 2.0±0.4 | 6000 | 2.0±0.4 | ||||||||||||
F2000 | 1.25±0.25 | 8000 | 1.2±0.3 | ||||||||||||
F2500 | 0.77±0.2 | ||||||||||||||
F3000 | 0.38±0.13 |
20kg bags in ton bag or on pallet
25kg bags in ton bag or on pallet