Brown Fused Alumina, HS Code 28181010, CAS No. 1344-28-1, usually called emery,is made of bauxite,carbon materials and iron dust.Put the three kinds of raw materials in the electric furnace and then melt,reduction,Finally get the brown corundum.The chemical composition of the brown corundum is Al2O3,and the content is 94.5%-97%,the other part contains a small amount of Fe,Ti and so on.
Physical properties:Crystal form trigonal system
Chemical properties:amphoteric and react with acid,slightly acid corrosion in aqua regia and hydrofluoric, react with alkali,the Knoop hardness 2000-2200kg/mm2,Mohs hardness 9.0,color dark brown and after burning,it gets to be deep blue,the melting point 2250C and the highest use temperature 1900C.
The main component of the brown corundum is alumina,the content of the alumina determines the degree of the quality,the less content of the alumina,the lower hardness.Higher toughness than SIC,the bulk density≥3.85g/cm3.high refratoriness up to 1850C.
Brown Fused Alumina powder F180 Grit Basic Indicators:
| Molecular Formula | α-Al2O3 Trigonal |
| Appearance | Brown powder |
| CAS No. | 1344-28-1 |
| HS Code | 28181010 |
Brown Fused Alumina Powder F180 Grit Chemical Composition
| Ingredients | Grade A | Grade A’ | Grade B | Grade B’ | Grade C |
| Al2O3 | 95% | 90% | 85% | 80% | 70% |
| TiO2 | 1.5% | 1.8% | 2.0% | 2.6% | 3.8% |
| SiO2 | 1.5% | 1.8% | 2.0% | 2.5% | 3.0% |
| Fe2O3 | 0.3% | 1.0% | 1.8% | 3.0% | 4.3% |
Note: Using time: Grade A 5-7tims. Grade B 3-5times. Grade C 1-2times
Brown Fused Alumina Powder F180 Grit Physical Properties
| Color | Brown |
| Moh’s hardness | ≥9.0 |
| Melting point | 2050℃ |
| The maximum temperature | 1900℃ |
| Specific gravity | 3.95g/cm3 |
| Bulk density | 1.68-1.99g/cm3 |
| Real density | ≥3.90g/cm3 |
Brown Fused alumina Powder F180 Grit Particle Size Distribution(PSD)
| F180 | +125um | 0 | +90um | ≤15% | +75um | +75+63um | ≥40% | -53um | * |
All data based upon RunLong Enterprise’s standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.
Recommendations By Seller:
Product Specification / Models
For Refractory
0-0.1mm 0-0.2mm 0-0.5mm 0-1mm 0.5-1mm 1-3mm 3-5mm 5-8mm 100mesh 200mesh 325mesh
Other specs are available upon request.
For Bonded & Coated Abrasives
Bonded abrasives: F24 F30 F36 F40 F46 F54 F60 F80 F100 F120 F150 F180 F220 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
Coated abrasives: P24 P30 P36 P40 P50 P60 P80 P100 P120 P150 P180 P220 P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 P3000
Other specs are available upon request.
For Sandblasting & Grinding
F24 F30 F36 F40 F46 F54 F60 F80 F100 F120 F150 F180 F220 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200
Other specs are available upon request.
For further technical data sheet, please do not hesitate to contact us.
Brown Fused Alumina Application:
1. BFA Brown fused alumina used in abrasive blasting, it’s widely used in aluminum, copper profiles glass, Washed jeans, precision molds and other fields;
2. BFA Brown fused alumina used in Grinding.It’s a grinding grade abrasive, used in the picture tube, optical glass,
monocrystalline silicon, lenses, watches with glass, crystal glass, jade and other fields of free grinding, is widely used in the domestic high-level grinding materials;
3. BFA Brown fused alumina can be used in Resin bond abrasive tools with it’s color suitable, good hardness, toughness, the appropriate particle type and edge retention.
4. BFA Brown fused alumina used in Coated abrasives.
5. BFA Brown fused alumina used as Corundum functional fillers.
6. BFA Brown fused alumina used as Filter media.
Packing and storage
Packing: Double coated plastic woven / paper bag, net weight 25kg.
Big bag packing, net weight 1000kg / 1250kg per clients’ request.
Storage: Dry, ventilated, moisture proof.
Delivery
1. The sample will be send by International expresses FEDEX/DHL/UPS/TNT.
2. Full container Load(FCL): By vessel Or International Railway Transportation
3. Less Than Container Load(LCL): By vessel or By air
Payment
1. Payment: T/T, Western Union, LC, Paypal.
2. MOQ: Usually 1Tons
3. Quality Warranty: 1 years
After Sales Service:
1).We are very glad that customer give us some suggestion for price and products.
2).If any question, please let us know it by E-mail or Telephone at the first time. We can deal with them for you in time.
