White fused alumina
Micro powder at normal standard, special size powder for special requirement could be made. For abrasive grade, refractory grade.
Normally, FEPA, JIS standard. Special size such as 0-10mm could be made.
AL2O3: 99.9%Min. Colour is white. Mohs hardness: 9.0, Size arrange: 3 to 0 micron, Melting point: 2150 degree centigrade.
It is top grade with very high purity and super micro for make high grade ceramics, additives in precision casting, compound filled insulator. insulation ceramic on electricity.
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
