Product size of brown aluminum oxide powder
| refractory sand | “FEPA” | 0-1mm 1-3mm 3-5mm 5-8mm 8-10mm 10-15mm… |
| segment sand | “FEPA” | -100mesh -200mesh -325mesh… |
| fine powder | “FEPA” | F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 |
| grit sand | “P” | P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 |
| abrasive sand | “FEPA” | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 F3000 |
| micropowder | “JIS” | 240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# |
Physical index of brown aluminum oxide powder
| Color | brown |
| Basic Mineral | α-AI2O3 |
| Crystal shape | Trigonal crystal system / Hexagonal crystal shape |
| Hardness(Mohs) | ≥9.0 |
| Microhardness | HV2200-2300 |
| Melting point(℃) | 2250 |
| Max temperature(℃) | 1900 |
| True density(g/cm3) | 3.96 |
| Bulk density(g/cm3) | 1.75-1.95g/cm3 |
Chemical index of brown aluminum oxide powder
Refractory sand | ||
Grit Size | Al2O3 | TiO2 |
0-1mm | >95.2% | <3.5% |
1-3mm | >95.2% | <3.5% |
3-5mm | >95.2% | <3.5% |
200mesh | >95.0% | <3.5% |
325mesh | >95.0% | <3.5% |
Abrasives sand | ||||
Grit Size | Al2O3 | SiO2 | Fe2O3 | TiO2 |
F8-F220 | >95.2% | <1% | <0.3% | <3.5% |
F240-F400 | >95% | <1% | <0.3% | <3.5% |
F500-F3000 | <1%>95% | <1% | <0.3% | <3.5% |
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) | |
| Standard werte der Mikro-F-Reihe | Serigraph 5000D | |||||||
| 240 | 60.0±4.0 | P240 | 58.5±2.0 | |||||
| 280 | 52.0±3.0 | P280 | 52.2±2.0 | |||||
| W63 | 63 – 50 | 320 | 46.0±2.5 | F230/53 | 53±3.0 | 50.0±3.0 | P320 | 46.2±1.5 |
| W50 | 50 – 40 | 360 | 40.0±2.0 | F240/45 | 44.5±2.0 | 42.0±2.0 | P360 | 40.5±1.5 |
| 400 | 34.0±2.0 | P400 | 35.0±1.5 | |||||
| W40 | 40 – 28 | 500 | 28.0±2.0 | F280/37 | 36.5±1.5 | 34.5±1.5 | P500 | 30.2±1.5 |
| 600 | 24.0±1.5 | F320/29 | 29.2±1.5 | 27.7±1.5 | P600 | 25.8±1.0 | ||
| W28 | 38 – 20 | 700 | 21.0±1.3 | F360/23 | 22.8±1.5 | 21.6±1.5 | P800 | 21.8±1.0 |
| 800 | 18.0±1.0 | F400/17 | 17.3±1.0 | 16.5±1.0 | P1000 | 18.3±1.0 | ||
| W20 | 20 – 14 | 1000 | 15.5±1.0 | F500/13 | 12.8±1.0 | 12.3±1.0 | P1200 | 15.3±1.0 |
| W14 | 14-10 | 1200 | 13.0±1.0 | |||||
| 1500 | 10.5±1.0 | F600/9 | 9.3±1.0 | 9.0±1.0 | ||||
| W10 | 10-7 | 2000 | 8.5±0.7 | |||||
| W7 | 7-5 | 2500 | 7.0±0.7 | F800/7 | 6.5±1.0 | 6.3±1.0 | ||
| W5 | 5 – 3.5 | 3000 | 5.7±0.5 | F1000/5 | 4.5±0.8 | 4.5±0.8 | ||
| F1200/3 | 3.1±0.5 | 3.1±0.5 | ||||||
| for general purposes | for general purposes | for bonded abrasives | for coated abrasives | |||||
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