Black fused corundum is a new type product of polishing material, and it is a dark gray crystal body made α-Al2O3 and ferropicotite as main ore in the electric arc furnace by smelting the bauxite. Black fused corundum is characterized by low Al2O3 and a certain amount of Fe2O3 (10% more or less) content, so it has characteristics of moderate hardness, high toughness, high temperature resistance, and stable thermal stability. It is mainly suitable for free grinding, such as coarse grinding before electroplating products, mainly for polishing and sandblasting of stainless steel, fabricated metal products, optical glass, bamboo products, and it is also new abrasive for manufacturing resin grinding wheel, cut-off wheels and emery cloth. The black fused corundum of J.L Group concentrated basic tablets, with the characteristics of strong cutting power, high toughness, high flexibility, good abrasion resistance and high working efficiency, which is the best product for grinding and polishing, sandblasting stainless steel products.
▼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 from skin
▼Chemical Analysis
|
Specifications |
Main Chemical Composition % |
|||
|
Al2O3 |
Fe2O3 |
SiO2 |
TiO2 |
|
|
BA—1 |
81-85 |
6-9 |
5-8 |
2-4 |
|
BA—2 |
75-80 |
9-12 |
8-10 |
4-6 |
▼Physical properties
|
Item |
Indicators |
|
Color |
Black |
|
Crystal |
Trigonal system |
|
Hardness (Mohs) |
≥ 9.0 |
|
Melting point (°C) |
2050 |
|
The maximum temperature (°C) |
1850 |
|
True Density (g/cm3) |
≥ 3. 50 |
|
Linear expansion coefficient (0-1600 °C) |
7-9 |
All data based upon Runlong Enterprise standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.
Good quality sandblasting brown fused corundum with unit price [USD350~500/Ton FOB Tianjin] from China corundum factory.
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 supply as request.
▼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.
