Brown aluminum oxide powder
Physical Characteristics for brown aluminum oxide powder:
| Crystal Form: | Alpha-Alumina |
| True Density: | 3.95 g/cm3 |
| Hardness: | Mohs 9.0 |
| Melting Point: | 2000°C |
| Colour: | Brown – Tan |
Brown aluminum oxide powder Sizing Test Methods:
| Sizing: | FEPA Standard 42-2: 2006 |
| JIS R 6001 – 1998 | |
| Micron sizes based on Coulter Multisizer |
Brown aluminum oxide powder FEPA F – JIS – GB – ISO Standard – Powders/Micro grits
| Available micron powder sizes | ||||||||
| China GB 2477-83 | JIS | FEPA(84) / DIN(70) | ISO(77) | |||||
| Grit No. | Standard size range(µm) | Grit No. | ds50 value (µm) | Grit No. | ds50 value (µm) | Grit No. | ds50 value (µm) | |
| W63 | 63 – 50 | 240 | 60.0±4.0 | F230/53 | 53±3.0 | 50.0±3.0 | P240 | 58.5±2.0 |
| W50 | 50 – 40 | 280 | 52.0±3.0 | F240/45 | 44.5±2.0 | 42.0±2.0 | P280 | 52.2±2.0 |
| W40 | 40 – 28 | 320 | 46.0±2.5 | F280/37 | 36.5±1.5 | 34.5±1.5 | P320 | 46.2±1.5 |
| W28 | 38 – 20 | 360 | 40.0±2.0 | F320/29 | 29.2±1.5 | 27.7±1.5 | P360 | 40.5±1.5 |
| W20 | 20 – 14 | 400 | 34.0±2.0 | F360/23 | 22.8±1.5 | 21.6±1.5 | P400 | 35.0±1.5 |
| W14 | 10-14 | 500 | 28.0±2.0 | F400/17 | 17.3±1.0 | 16.5±1.0 | P500 | 30.2±1.5 |
| W10 | 10-7 | 600 | 24.0±1.5 | F500/13 | 12.8±1.0 | 12.3±1.0 | P600 | 25.8±1.0 |
| W7 | 7-5 | 700 | 21.0±1.3 | F600/9 | 9.3±1.0 | 9.0±1.0 | P800 | 21.8±1.0 |
| W5 | 5 – 3.5 | 800 | 18.0±1.0 | F800/7 | 6.5±1.0 | 6.3±1.0 | P1000 | 18.3±1.0 |
| – | 1000 | 15.5±1.0 | F1000/5 | 4.5±0.8 | 4.5±0.8 | P1200 | 15.3±1.0 | |
| 1200 | 13.0±1.0 | F1200/3 | 3.1±0.5 | 3.1±0.5 | – | |||
| 1500 | 10.5±1.0 | – | ||||||
| 2000 | 8.5±0.7 | |||||||
| 2500 | 7.0±0.7 | |||||||
| 3000 | 5.7±0.5 | |||||||
| For general purposes | For general purposes | For bonded abrasives | For coated abrasives | |||||
