White fused alumina 0.045mm for lost wax casting paint
【Product Name】: White fused alumina 0.045mm
【Other Name】: White corundum 325F, WFA 325F, White aluminum oxide 325mesh,Cát oxit nhôm trắng, Oxit nhôm trắng, óxido de alumínio branco,Óxido de Alumínio Eletrofundido,vit ädelkorund
【CAS Code】: 1344-28-1
【EINECS No】: 215-691-6
【HS Code】:2818109000
White fused alumina 0.045mm is a fine WFA powder with 90% particle passing 325 mesh. It charactorised with high thermal resistance, high refractoriness, low voluem expansion, chemical stability. In the lost wax casting process, white fused alumina 0.045 works well as casting paint and shell making powder. It can improve the precision of castings.
Features of White fused alumina 0.045mm for lost wax casting paint
- High refractoriness. It can resistant to high temperatures up to 1900°C.
- Low thermal expansion rate.
- Few impurities such as ferro, silica, etc.
- High strength with Mohs hardness of 9.0.
- High density.
- Resistant to most acid and alkali.
- Chemical stability, so it won’t get eroded by molten steel.
Typical physical properties of White fused alumina 0.045mm for lost wax casting paint
| Hardness: | Mohs:9.0 |
| Maximum service temperature: | 1900 ℃ |
| Melting Point: | 2250 ℃ |
| Specific Gravity: | 3.95 g/cm3 |
| Volume density | 3.6 g/cm3 |
| Bulk density(LPD): | 1.55-1.95 g/cm3 |
| Color: | White |
| Particle shape: | Angular |
| Thermal expansion coefficient (1600℃) | 6-8×10⁻⁶/℃ |
| Thermal conductivity | 6.16 W/（m·K） |
Typical chemical composition of white fused alumina 325 mesh
| Al2O3 | 99.44 % |
| Fe2O3 | 0.016 % |
| SiO2 | 0.117 % |
| MgO | 0.10 % |
| CaO | 0.025 % |
| TiO2 | 0.037 % |
| Na2O | 0.23 % |
| K2O | 0.01 % |
| LOI | < 0.06 |
Sizes of white fused alumina fine powder：
| Grit size | Mesh | Particle distribution |
| WFA 100F (100#-0) | ≦0.150mm | ≧90% |
| WFA 200F (200#-0) | ≦0.075mm | ≧90% |
| WFA 270F (270#-0) | ≦0.053mm | ≧90% |
| WFA 325F (325#-0) | ≦0.045mm | ≧90% |
Applications of white fused alumina 325 mesh
- Refractory castable, Kiln construction as well as ladle repair.
- Foundry coating paint for casting for shell molding.
- Casting paint for Precision casting and 3D printing.
- Thermal conductive applications such as thermal conductive glue and additives.
Production details of white fused alumina
Product Qualification of white fused alumina
Packing of white fused alumina
25KGS/PVC Bag
1Metric Ton/Jumbo Bag
25KGS/PVC Bag,40Bags/Jumbo Bag
1 Metric Ton/Jumbo Bag/Pallet
In the meantime, other customized packages are available.
FAQ
Q: Are you a manufacturer or trading company?
A: We are a manufacturer of white fused alumina. HAIXU Abrasives has white fused alumina manufacturing history of 22 years. So we could provide professional service to customers. We produce White fused alumina section sand, White fused alumina grains, White fused alumina powder, etc.
Q: What about the difference between White fused alumina 325#-0 powder and 320 mesh micro powder?
A: The White fused alumina 325#-0 powder is get from the milling and mesh sieving process. It’s more suitable for filler of refractory products. However, the White fused alumina 320 mesh is get from a water suspension treating process. It’s more suitable for polishing and lapping.
Q: Are the White fused alumina grains you get is produced from a Tilting furnace or a Fixing furnace?
A: Our white fused alumina grains F8-F220 are produced from fixing furnaces. Fixing furnace white fused alumina is of higher toughness and more durable.
Q: What is the content of Na2O of your white fused alumina grains?
A: We have normal Sodium WFA grain and low Sodium WFA grain. Normal WFA grain Na2O content is max. 3%. It is even lower than most competitors. Low sodium WFA grain Na2O content is max.0.1%.
Q: Do you have a MOQ of WFA powder?
A: Basically, there is no limit to MOQ. Even 25kgs(1 bag)is ok for us. But the logistic cost will be higher than normal.
Q: How do you make quality control on White fused alumina before delivery?
A: We will check the quality of white fused alumina including chemical content, particle size distribution, and milling toughness of white fused alumina. In the meantime, check the bulk density of white fused alumina, the whiteness of white fused alumina, etc.
Q: What is the lead time of FCL White fused alumina?
A: Generally, 7-10 days after receiving the deposit.
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