White fused alumina short for WFA, also known as white fused aluminum oxide, white aluminum oxide, white corundum, is a kind of high-grade refractory and abrasives, was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3. The micro hardness of the product is 2200-2300kg/mm2. The abrasive tools made of it are suitable for grinding high carbon steel, high-speed steel and chilled steel. It can also be used as sandblasting, lapping and polishing medium, precision founding sand, coating materials, catalyst carrier, special ceramics and super refractory materials.
▼Usage:
● Available research in a variety of blasting and light lapping operations
● The process of beautifying glass or acrylic
● The process of blasting TV screens
● The cutting of silicon wafer
● The process of cleaning and blasting tooth model
● Precision sand casting
● High refractory and other ceramic additives
● to make sandpaper & sandcloth
▼Chemical Analysis
|
Purpose |
Specifications |
Chemical |
Magnetic material Content (%) |
||||
|
For Abrasives |
Al2O3 |
Fe2O3 |
SiO2 |
Na2O |
|||
|
F |
12-80 |
≥99.5 |
≤0.08 |
≤0.10 |
≤0.38 |
≤0.0023 |
|
|
90-150 |
≥99.45 |
≤0.08 |
≤0.10 |
≤0.38 |
≤0.0021 |
||
|
180-220 |
≥99.4 |
≤0.08 |
≤0.20 |
≤0.40 |
≤0.0018 |
||
|
240-1200 |
≥99.2 |
≤0.10 |
≤0.20 |
≤0.10 |
— |
||
|
Refractory |
Section Sand |
0-1mm 1-3mm 3-5mm 5-8mm 8-10mm 10-16mm |
≥99.5 |
≤0.10 |
≤0.10 |
≤0.35 |
— |
|
Fine Powder |
-180mesh -220mesh -240mesh -320mesh |
≥99.0 |
≤0.10 |
≤0.20 |
≤0.38 |
— |
|
▼Physical properties
|
Color |
White |
|
Crystal shape |
α-Al2O3 Trigonal |
|
Hardness(mohs) |
≥9.0 |
|
Micro Hardness |
HV2200-2300 |
|
Melting Point (℃) |
2250 |
|
True Density (g/cm3) |
≥3. 97 |
|
Bulk Density(g/cm3) |
1.75-1.95 |
|
Linear Expansion Coefficient(0—1600℃) |
8.3 |
All data based upon Runlong Enterprise standard test methods. We could supply grit size according to FEPA, JIS, ANSI, GB & P Standard.
Good quality white fused alumina with unit price[USD800~1080/MT FOB TIANJIN] from China manufacturer.
▼Shipping Package
|
woven bags |
paper bags |
jumbo bags |
jumbo bags |
woven bag+pallet |
paper bag+pallet |
|
25kg net |
25kg net |
1mt |
1.5mt |
1mt |
1mt |
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.
