White Emery sand/grain/grits
White Emery was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is
white with the main crystal phase α-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and
low porosity and the volume stability and thermal shock resistance can be improved.
PPHYSICAL PROPERTIES
| Specific Weight | 3.96 g/ cm3 |
| Mohs Hardness | 9.0 |
| Crystal form | α-Al2O3 |
| Melting Point | 2250℃ |
1.Used for refractory,casting,foundry and Painting etc
TTYPICAL CHEMICAL ANALISIS [%]
| Size | Al2O3 | Fe2O3 | MgO | CaO | Na2O | K2O |
| 0-1mm 1-3mm 3-5mm 5-8mm | ≥99.5 | ≤0.06 | ≤0.02 | ≤0.02 | ≤0.30 | ≤0.02 |
| 200F 325F | ≥98.5 | ≤0.20 | ≤0.05 | ≤0.05 | ≤0.40 | ≤0.05 |
Used for abrasives,blasting,grinding,ceramic,rust removal,surface treatment,floor coating,abrasion resistant layer etc
TTYPICAL CHEMICAL ANALISIS [%]
| Al2O3 | Fe2O3 | FeO | MgO | CaO | TiO2 | Na2O | K2O | LOI |
| 99.5 | 0.04 | / | 0.01 | 0.01 | / | 0.25 | 0.01 | < 0.09 |
PPARTICLE SIZE DISTRIBUTION
| F8 | +4000um | 0 | +2800um | ≤20% | +2360um | ≥45% | +2360+2000um | ≥70% | -1700um | ≤3% |
| F10 | +3350um | 0 | +2360um | ≤20% | +2000um | ≥45% | +2000+1700um | ≥70% | -1400um | ≤3% |
| F12 | +2800um | 0 | +2000um | ≤20% | +1700um | ≥45% | +1700+1400um | ≥70% | -1180um | ≤3% |
| F14 | +2360um | 0 | +1700um | ≤20% | +1400um | ≥45% | +1400+1180um | ≥70% | -1000um | ≤3% |
| F16 | +2000um | 0 | +1400um | ≤20% | +1180um | ≥45% | +1180+1000um | ≥70% | -850um | ≤3% |
| F20 | +1700um | 0 | +1180um | ≤20% | +1000um | ≥45% | +1000+850um | ≥70% | -710um | ≤3% |
| F22 | +1400um | 0 | +1000um | ≤20% | +850um | ≥45% | +850+710um | ≥70% | -600um | ≤3% |
| F24 | +1180um | 0 | +850um | ≤25% | +710um | ≥45% | +710+600um | ≥65% | -500um | ≤3% |
| F30 | +1000um | 0 | +710um | ≤25% | +600um | ≥45% | +600+500um | ≥65% | -425um | ≤3% |
| F36 | +850um | 0 | +600um | ≤25% | +500um | ≥45% | +500+425um | ≥65% | -355um | ≤3% |
| F46 | +600um | 0 | +425um | ≤30% | +355um | ≥40% | 355+300um | ≥65% | -250um | ≤3% |
| F54 | +500um | 0 | +355um | ≤30% | +300um | ≥40% | +300+250um | ≥65% | -212um | ≤3% |
| F60 | +425um | 0 | +300um | ≤30% | +250um | ≥40% | 250+212um | ≥65% | -180um | ≤3% |
| F70 | +355um | 0 | +250um | ≤25% | +212um | ≥40% | +212+180um | ≥65% | -150um | ≤3% |
| F80 | +300um | 0 | +212um | ≤25% | +180um | ≥40% | +180+150um | ≥65% | -125um | ≤3% |
| F90 | +250um | 0 | +180um | ≤20% | +150um | ≥40% | +150+125um | ≥65% | -106um | ≤3% |
| F100 | +212um | 0 | +150um | ≤20% | +125um | ≥40% | +125+106um | ≥65% | -75um | ≤3% |
| F120 | +180um | 0 | +125um | ≤20% | ≥40% | ≥40% | +106+90um | ≥65% | -63um | ≤3% |
| F150 | +150um | 0 | +106um | ≤15% | +75um | ≥40% | +75+63um | ≥65% | -45um | ≤3% |
| F180 | +125um | 0 | +90um | ≤15% | +75um | * | +75+63um | ≥40% | -53um | * |
| F220 | +106um | 0 | +75um | ≤15% | +63um | * | +63+53um | ≥40% | -45um | * |
Used for Grinding,polishing,lapping,whetstone,polishing pads,ceramic membrance etc
TYPICAL CHEMICAL ANALISIS [%]
| Al2O3 | Fe2O3 | SiO2 | FeO | MgO | CaO | TiO2 | Na2O | K2O | LOI |
| 99.2-99.6 | 0.03-0.10 | ≤0.02 | / | ≤0.01 | ≤0.01 | / | 0.20-0.30 | ≤0.02 | < 0.09 |
APARTICLE SIZE DISTRIBUTION
CHAPTER Ⅰ（JIS STANDARD）
| Size | DO(um) | D3(um) | D50(um) | D94(um) |
| #240 | ≤127 | ≤103 | 57.0±3.0 | ≥40 |
| #280 | ≤112 | ≤87 | 48.0±3.0 | ≥33 |
| #320 | ≤98 | ≤74 | 40.0±2.5 | ≥27 |
| #360 | ≤86 | ≤66 | 35.0±2.0 | ≥23 |
| #400 | ≤75 | ≤58 | 30.0±2.0 | ≥20 |
| #500 | ≤63 | ≤50 | 25.0±2.0 | ≥16 |
| #600 | ≤53 | ≤41 | 20.0±1.5 | ≥13 |
| #700 | ≤45 | ≤37 | 17.0±1.5 | ≥11 |
| #800 | ≤38 | ≤31 | 14.0±1.0 | ≥9.0 |
| #1000 | ≤32 | ≤27 | 11.5±1.0 | ≥7.0 |
| #1200 | ≤27 | ≤23 | 9.5±0.8 | ≥5.5 |
| #1500 | ≤23 | ≤20 | 8.0±0.6 | ≥4.5 |
| #2000 | ≤19 | ≤17 | 6.7±0.6 | ≥4.0 |
| #2500 | ≤16 | ≤14 | 5.5±0.5 | ≥3.0 |
| #3000 | ≤13 | ≤11 | 4.0±0.5 | ≥2.0 |
| #4000 | ≤11 | ≤8.0 | 3.0±0.4 | ≥1.8 |
| #6000 | ≤8.0 | ≤5.0 | 2.0±0.4 | ≥0.8 |
| #8000 | ≤6.0 | ≤3.5 | 1.2±0.3 | ≥0.6 |
CHAPTER Ⅱ（FEPA STANDARD）
| Size | D3(um) | D50(um) | D94（um) |
| F230 | ＜82 | 53.0±3.0 | >34 |
| F240 | ＜70 | 44.5±2.0 | >28 |
| F280 | ＜59 | 36.5±1.5 | >22 |
| F320 | ＜49 | 29.2±1.5 | >16.5 |
| F360 | ＜40 | 22.8±1.5 | >12 |
| F400 | ＜32 | 17.3±1.0 | >8 |
| F500 | ＜25 | 12.8±1.0 | >5 |
| F600 | ＜19 | 9.3±1.0 | >3 |
| F800 | ＜14 | 6.5±1.0 | >2 |
| F1000 | ＜10 | 4.5±0.8 | >1 |
| F1200 | ＜7 | 3.0±0.5 | >1(at 80%) |
| F1500 | ＜5 | 2.0±0.4 | >0.8(at 80%) |
| F2000 | ＜3.5 | 1.2±0.3 | >0.5(at 80%) |
Mainly Applications
-Bonded Abrasives and Coated abrasives
-Creating a matt finish on glass
-Wet and dry blast media,grinding and polishing etc
-Floor/Wall laminates,Wear-resistant
-Thermal spraying/plasma spraying,Processing very hard component
-Catalyst Carrier
-Ceramic and Tiles,Ceramic filter plate,ceramic membrane etc
-Grinding wheels,Cup wheels,Whetstone,polishing pads etc
-Blast-cleaning,surface finishing,Deburring,Roughening metallic surfaces
