Brown Fused Alumina short for BFA, also known as brown fused aluminum oxide, brown aluminum oxide, and brown corundum.it is a product manufactured by gradual melting reduction of calcined bauxite in an electric arc furnace at high temperature (approximately 2000 degrees Celsius). Its chemical composition consists mainly of Al2O3 (94,5-97%) and vestigial amounts of TiO2, SiO2, Fe2O3, CaO and MgO. It is characterized by good self-sharpening and high grinding ability. Brown Fused Alumina can be used in ceramic resin abrasive, sand blasting, grinding and polishing, and widely used in non-slip wear runway into a high-temperature basic plating, metallurgical and chemical industries of advanced refractory, the idea martial for sandblasting, cleaning parts, polishing and so on.
Brown Fused Alumina is characterized by good toughness, high mechanical resistance and hardness (9 in Mohs scale). The micro hardness of the material reaches about 1900kG/mm2. Specific gravity (density) equals 3,90+/-0,05 g/cm3. Bulk density depending on size equals 1,68-1,95 g/cm3. It has relatively high thermal conductivity and low thermal expansion. As regards electricity it is an insulator.
▼Applications
● For free grinding, such as glass industry
● For non-slip of airport and road, chemical factory board paving
● For produce ceramic grinding wheel, resinoid grinding wheel, grinding stone,
● For free grinding, such as coarse grinding before electroplating products.
● For polishing and sandblasting of stainless steel, fabricated metal products.
● For investment casting technics of stainless steel and aluminum casting in coating.
● For sand paper, sand cloth, sand belt, Polish wax, abrasive paste, coating etc…
● For abrasion and high temperature resistant in steel metallurgy, various industrial stoves
● For various material workpieces to decontaminate, prevent corrosion, remove oxide skin
▼GRADE A Macrogrit
|
Size |
FEPA |
F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 |
|
JIS |
#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 |
|
|
Al2O3 |
≥95.0% |
|
|
Fe2O3 |
≤0.50% |
|
|
SiO2 |
≤1.60% |
|
|
Bulk density |
1.53-1.99g/cm3 |
|
|
Specific Gravity |
≥3.90g/cm3 min |
|
|
Mohs Hardness |
≥9 |
|
|
Application |
Bonded abrasives and Coated abrasives Surface treatment/finishing Lapping, polishing,decorative non-skid tile, and pressure blasting. Ceramic Tiles special ceramics Fluidized Bed Furnaces and Skin / Dental Care Grinding high carbon steel, high-speed steel and chilled steel |
|
▼Grade A Micropowder
|
Size |
FEPA |
F230 F240 F280 F320 F360 F400 F500 F600 F800 |
|
JIS |
#240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 |
|
|
Chemical Composition |
Al2O3 |
92.5-95.0% |
|
Fe2O3 |
0.35-0.8% |
|
|
SiO2 |
1.40-2.0% |
|
|
Physical properties |
Specfic Gravity |
3.95-3.97g/cm3 |
|
Bulk density |
1.53-1.99g/cm3 |
|
|
Mohs Hardness |
9.0 |
|
|
Application |
Bonded abrasives and Coated abrasives Floor / Wall Laminates Thermal Spraying (Plasma Spraying) Lapping & Micro-blasting applications Super Refractories, Ceramics and Tiles Brake linings |
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All data based upon RunLong Enterprise standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.
Good quality brown fused alumina,brown aluminum oxide,brown corundum with unit price[USD580~700/Ton FOB Tianjin] from China manufacturer.
▼Grade B (70-80% Purity) Brown Fused Alumina Chemical Analysis & Physical Properties
|
Chemical Analysis (%) |
Physical Properties |
||
|
Al2O3 |
70-80% |
Specific Gravity |
3.50-3.90g/cm3 |
|
Fe2O3 |
8-15%% |
Bulk density |
1.30-1.90g/cm3 |
|
SiO2 |
2-5% |
Mohs Hardness |
7.0-9.0 |
|
TiO2 |
3-5% |
/ |
/ |
|
Size |
FEPA |
F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 |
|
|
JIS |
#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 |
||
▼ Grade C (50-65% Purity) Brown Fused Alumina Chemical Analysis & Physical Properties
|
Chemical Analysis (%) |
Physical Properties |
||
|
Al2O3 |
50-65% |
Specific Gravity |
3.50-3.90g/cm3 |
|
Fe2O3 |
12-20% |
Bulk density |
1.30-1.90g/cm3 |
|
SiO2 |
15-25% |
Mohs Hardness |
7.0-9.0 |
|
TiO2 |
4-6% |
/ |
/ |
|
Size |
FEPA |
F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F40 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220 |
|
|
JIS |
#8 #10 #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 |
||
▼Packing:
Jumbo Bag of 1 Ton, 1.2 Tons or 1.3 Tons
25kg Woven Plastic Bag, 40 Bags in a jumbo Bag
25kg Woven Plastic Bags, 40 Bags on a Wood Pallet
25kg Paper Bag, 40 Bags on a Wood Pallet
Other package also could be supplied as required.
▼Our Advantages:
a. Assure the high quality of products.
b. Equipped full line of test method. The laboratory is certified by government Inspection Bureau, that assures its quality stability.
c. All products will be supplied according to customers different requirements.
d. One-stop service
e. A grade products with high purity
f. Professional abrasives manufacturer since 1999
g. Production capacity:1000-1500 metric ton/month
▼Payment:
1).Our first choice is T/T. For a large order 40% T/T in advance is earnest money, the rest to be paid in 7-10 days after getting B/L copy. For a small order,100% T/T in advance.
2).Second choice is L/C. We can accept irrevocable L/C at sight. For a large order 40%T/T, 60%L/C. We couldn’t accept L/C for a small order. The best way of payment we advise is T/T, because L/C is very complicated and a lot of extra fee to give the bank.
3).The others: West Union, Paypal.
▼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.
▼Factory Visit:
1).Welcome any customer to visit our factory directly
2).If customer have any scheduling in China, please let us know. We would like to help you book the hotel and pick up you from airport or railway station.
