Our brown fused aluminum oxide is made into many shapes and grit sizes ranging from macrogrits to microgrits and powders and be used for abrasive media such as for the raw materials of grnding wheels sandpaper, blasting media, metal preparation, laminates, coatings, lapping, polishing, grinding etc.
Brown Corundum / Brown Fused Alumina /Brown Fused Aluminum Oxide/ Brown Aluminum Oxide
Description:
Brown Aluminum Oxide is made of high-quality bauxite as raw material, anthracite and iron filings. It is made by arc smelting at 2000°C or higher temperature. It is crushed and plasticized by self-grinding machine, magnetically selected to remove iron, sieved into various sizes, and its texture is dense and hard. High, spherical pellets, suitable for the production of ceramic, high-resistance abrasive resin and grinding, polishing, sandblasting, precision casting, etc., can also be used to manufacture high-grade refractories.
Characteristic:As there is high temperature, corrosion resistance, high strength properties, it can be for material of refractory bricks. it poured with steel sliding gate, smelting rare metals, special alloys, ceramics, iron-smelting furnace of the lining (walls and tubes); physical and chemical containers , spark plugs, heat-resistant anti-oxidation coating.Due to high hardness, wear resistance, high strength characteristics, in the chemical system, used for a variety of reaction vessels and pipelines, chemical pump parts; to do mechanical parts, various molds, such as the Roberts mold, extrusion die nozzle pencil lead, etc.; do tool, die grinding, bulletproof material, the human body joints, sealing ring mold. Corundum heat preservation material , such as lightweight corundum brick, corundum hollow ball and fiber products, widely used in a variety of high-temperature kiln furnace walls and roof, both high temperature-resistance and heat-preservation.
Applications for refractory industrial:
Unshaped refractory, stereotypes refractory, castable, ladle refractory, blast furnace hot air furnace series combination brick, high alumina brick, carbon refractory, mullite brick, gun mud, Bulk materials, ceramic bricks, composite bricks, corundum products, charge, pound, refractory raw materials, abrasive raw materials, used in steel mills, foundries, glass factory high-end refractories.
Applications for abrasives:
1.For the raw material of Unshaped and shaped refractory
2.For Friction products and abrasion resistance ground,
3.For Resin or ceramic bonded abrasive,such as grinding wheels,cutting off wheels.
4.For Grinding and polishing ,such as gringing stone, Grinding block, flap disc.
5.For Coated abrasives,such as abrasive paper,abrasive cloth,abrasive belt,Guze.
6.For Producing mold of precision casting and Grinding, lapping and polishing media.
7.For Shot-blasting, such as for sandblasing oil piple , ship and tanks with non magnetic.
8.For Structural And Plate Steel Maintenance.
9.For as shotblasting media for rapid scale removal
10. For preparation of surfaces for painting or bonding
Chemical Properties:
| Purpose |
Specification |
Chemical composition(%) |
Magnetic material ≤ |
| Al2O3(≥) |
Fe2O3(≤) |
SiO2≤ |
TiO2≤ |
| For abrasive |
F grit |
4#-80# |
95.0 |
0.3 |
1.5 |
3.0 |
0.05 |
| |
90#-150# |
94.0 |
0.03 |
| |
180#-240# |
93.0 |
3.5 |
0.02 |
| P grit |
8#-80# |
95.0 |
0.2 |
1.2 |
3.0 |
0.05 |
| |
100#-150# |
94.0 |
0.03 |
| |
180#-220# |
93.0 |
0.3 |
1.5 |
3.5 |
0.02 |
| Micro Powder |
W0.5-W63
F320-F1500 |
92.5 |
0.5 |
1.8 |
4.0 |
|
| For refractory |
Size for Sand |
0-1mm
1-3mm
3-5mm
5-8mm
8-12mm |
95.5 |
0.3 |
1.5 (1.0 from Tilting Furnace) |
3.0 |
|
0-3mm
0-5mm
0-10mm
0-25mm |
95.0 |
0.3 |
1.5 |
3.0 |
|
| Fine powder |
100F
200F
325F |
94.5 |
0.5 |
1.5 |
3.5 |
|
We also can provide grain size as customer's special requiremen.
Physical Properties:
| Item |
Index |
| Colour |
Dark brown(Deep blue after calcination) |
| Crystal form |
Trigonal crystal |
| Hardness(MO) |
≥9.0 |
| Melting point(°c) |
2250 |
| Maximum service temperature°c |
1900 |
| True density(g/cm3) |
≥3.9 |
| Coefficient of linear expansion |
7-9 |
FAQ:
Question 1: Are you a manufacturer or trader ?
Yeah, We are the manufacturer of BFA, WFA, GC. Also,we had good business relationship with others abrasive media & refractory raw materials manufacturer . more over we have QC department which make strict inspection on goods quality, packing, so we can provide a stable and quick delivery of all the products, All the producers we cooperate with have consistent quality and competitive prices.
Question 2: Do you have stock of Abrasive media or Refractory materials ?
Yeah, we have many stock .Just let us know the products you'd like or interested, then we can sent you the full information of the stock at once.
Question 3: Can i get sample in free , how long is the time?
Yes, certainly. We will provide the sample is in free below 5 kgs for free, and the freight cost for free in 1kg. We could arrange the existing samples express delivery immediately. For any special samples requirement, it need max 7 days finished. Usually we send samples by TNT ,FEDEX, DHL, or UPS. It takes 4-7days been to your hand.
Question 4: Can you customized quality, size, package according to customer?
Yes, of course. The OEM is available. We will do the creation in your requirement and make ur image come true.
Question 5:Can Customer ask for the third party certification?
Yes, No problem, but Customer resposiable for the charge.
Question 6:Warranty
Firstly, We make sure the quality before the goods to be packed, if clients get the item with Substandard products, We have warranty for our clients,we will ship out the new replacements.
Question 7:Sample cost is refundable or not?
Yes, Sample cost below 5 kgs can be refunded when bulk order confirmed,But freight cost for more than 1kg don't be refunded.
Question 8:What's payment terms ?
Bank T/T, L/C at sight, Westunion.
Question 9:What's lead time for bulk order?
1)for 5~25 tons, it takes around 10~15days.
2)For 26~200 tons,20-40days
We will try to deliver it with the promise of quality guarantee as soon as possible
Question 11:Which method of transport would be better?
Generally, we suggest to make shipment by sea which costs less. We also can follow other transportation method you asked.
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