Refractory aggregate White corundum fraction
Product Introduction of Refractory aggregate White corundum fraction
Refractory aggregate White corundum fraction is made from WFA lumps. WFA refractory aggregate is artificial alumina by high-temperature fusing process. White fused alumina is of high density and high refractoriness. It is of excellent thermal performance.
Typical physical properties of Refractory aggregate White corundum fraction
| Hardness: | Mohs:9.0 |
| Maximum service temperature: | 1900 Degree |
| Melting Point: | 2250 Degree |
| Specific Gravity: | 3.95g/cm3 |
| Volume density | 3.6g/cm3 |
| Bulk density(LPD): | 1.55-1.95 g/cm3 |
| Color: | White |
| Particle shape: | Angular |
Typical chemical composition of Refractory aggregate White corundum fraction
| Size | 0-1mm | 1-3mm |
| AL2O3 | 99.52% | 99.7% |
| SiO2 | 0.06% | 0.06% |
| NA2O | 0.27% | 0.21% |
| Fe2O3 | 0.02% | 0.01% |
| TiO2 | Max.0.01% | Max.0.01% |
| Moisture | Max.0.01% | Max.0.01% |
Particle size distribution of Refractory aggregate White corundum fraction
| Size | Certified Value(%) | Typical Value(%) | |||
| 8-5mm | +8.00mm | -4.75mm | +8.00mm | +4.75mm | -4.75mm |
| 5max | 5max | 0-5 | 90-100 | 0-5 | |
| 5-3mm | +4.75mm | -2.80mm | +4.75mm | +4.00mm | -2.80mm |
| 10max | 10max | 0-10 | 15-35 | 0-10 | |
| 3-1mm | +2.80mm | -1.0mm | +2.8mm | +2.0mm | -1.00mm |
| 10max | 10max | 0-10 | 25-50 | 0-10 | |
| 1-0mm | +1.00mm | -0.212mm | +1.00mm | -0.212mm | |
| 5max | 35max | 0-5 | 0-35 | ||
Product features of Refractory aggregate White corundum fraction
High hardness: Mohs hardness is 9.0, Vickers hardness(HV) is 2000-2200.
Good toughness: For example, the compressive strength of white fused alumina F120 is 100KN/cm2.
High density: The volume density of WFA is 3.6g/cm3.
High-temperature resistance with low thermal conductivity and low coefficient of linear expansion. So it can resist to thermal shock.
PH value: White fused alumina is a neutral substance with PH Value 7.0-8.0.
High resistance to chemical corrosion. White fused alumina is resistant to most acid and alkali materials.
Applications of White fused Alumina aggregate fraction 1-3mm
Refractory aggregate for ladle in the steel-making industry.
Kiln construction.
Furnace building.
Refractory bricks.
Ceramic Tiles special ceramics.
Technical ceramics.
Production details of Refractory aggregate White corundum fraction
Product Qualification of Refractory aggregate White corundum fraction
Packing of Refractory aggregate White corundum fraction
1Metric Ton/Jumbo Bag
1 Metric Ton/Jumbo Bag/Pallet
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 experience of 22 years. 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 mesh powder and 320 mesh micro powder?
A: The White fused alumina 325 mesh is get from the milling and mesh sieving process. It’s more suitable for filler of refractory products. 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. 0.3% which is lower than most competitors. Low sodium WFA grain Na2O content is max.0.1%.
Q: Do you have a MOQ of WFA grain?
A: Generally no limit of 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, milling toughness of white fused alumina, 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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