Brown corundum is bauxite, coke (anthracite) in raw materials, melting in electric arc furnace at high temperature. The main chemical compositions are Al2O3, TiO2 and a little SiO2, Fe2O3 and so on. Its hardness is HV1800-2200 and it’s tougher than Sic. The abrasive made from it is suitable for high tensile strength metal, such as a variety of common steel, malleable iron and hard bronze. It also can be used as advanced refractory.
▼Usage:
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.
MACRO GRITS |
MICRO GRITS |
||
Grit Size |
Mean Diameter in µm |
Grit Size |
Mean Diameter in µm |
F 8 |
2460 |
F 220 |
53.0 ± 3 |
F 10 |
2085 |
F 280 |
36.5 ± 1.5 |
F 12 |
1765 |
F 320 |
29.2 ± 1.5 |
F 14 |
1470 |
F 360 |
22.8 ± 1.5 |
F 16 |
1230 |
F 400 |
17.3 ± 1 |
F 20 |
1040 |
F 500 |
12.8 ± 1 |
F 22 |
885 |
F 600 |
9.3 ± 1 |
F 24 |
745 |
F 800 |
6.5 ± 1 |
F 30 |
625 |
F 1000 |
4.5 ± 0.8 |
F 36 |
525 |
F 1200 |
3.0 ± 0.5 |
F 40 |
438 |
F 1500 |
2.0 ± 0.4 |
F 46 |
370 |
F 2000 |
1.2 ± 0.3 |
F 54 |
310 |
||
F 60 |
260 |
||
F 70 |
218 |
||
F 80 |
185 |
||
F 90 |
154 |
||
F 100 |
129 |
||
F 120 |
109 |
||
F 150 |
82 |
▼Chemical Analysis
Purpose |
Specifications |
Chemical Composition (%) |
Magnetic Material Content (%) |
||||
For Abrasives |
Al2O3 |
Fe2O3 |
SiO2 |
TiO2 |
|||
F |
6-80 |
≥95.0 |
≤0.30 |
≤1.50 |
≤3.0 |
≤0.05 |
|
90-150 |
≥94.5 |
≤0.30 |
≤1.50 |
≤3.0 |
≤0.03 |
||
180-220 |
≥94.0 |
≤0.30 |
≤1.50 |
≤3.5 |
≤0.02 |
||
240-1200 |
≥93.5 |
≤0.50 |
≤1.80 |
≤4.0 |
— |
||
Refractory |
Section Sand |
0-1mm 1-3mm 3-5mm 5-8mm 8-10mm 10-16mm |
≥95.0 |
≤0.30 |
≤1.50 |
≤3.0 |
— |
Fine Powder |
-180mesh -220mesh -240mesh -320mesh |
≥93.5 |
≤0.50 |
≤1.50 |
≤3.5 |
— |
▼Physical properties
Color |
Brown |
Crystal shape |
α-Al2O3 Trigonal |
Hardness(mohs) |
≥9.0 |
Micro Hardness |
HV1800-2200 |
Melting Point (℃) |
2050 |
True Density (g/cm3) |
≥3. 90 |
Bulk Density(g/cm3) |
1.68-1.95 |
Linear Expansion Coefficient(0—1600℃) |
7.6 |
All data based upon Runlong Enterprise standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.
Good quality abrasive material brown corundum with unit price[USD580~700/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 suppy 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.