What grit do i use for my finishing application?
If you are roughing, choose a 36 to 80 grit. If you are intermediate grinding, use 80 through 180 grit. If you are finishing, use 220 through 240 grit.
White fused alumina for refractories 0-1mm
White fused alumina 0-1 mm is the powder in particle size segment from 0 to 1mm. Powder 0-1 mm can be directly used as refractory materials or further processed into fine powder particles. White fused alumina (WFA) is obtained from the fusion of high purity industrial alumina in electric arc furnaces. WFA is raw material characterized by high hardness, yet friable with high purity, chemical stability, a high melting point, and large crystal size. White fused alumina is used in many applications, including grinding and cutting wheels, refractories and ceramic shapes, coated abrasives, investment casting shells, laminates, coatings, blasting abrasives, lapping and polishing.
Introduce of white fused alumina for refractories 0-1mm:
White fused alumina for refractory is a challenging and chemically resistant material widely used in the refractory and foundry industries for its excellent resistance to molten chemical attack alloys and slag and its high refractoriness (>2000°C). White fused alumina is used as the flour and stucco for the refractory coats; White fused alumina also is a standard refractory material for both prime coats and back-ups. Particle size distributions from fine powder size to refractory size are available to cover the full range requested for refractory application.
Chemical composite and physical properties of white fused alumina for refractories 0-1mm:
| Items | Grain |
| Al2O3 | 99.3%min |
| SiO2 | 0.10%max |
| Fe2O3 | 0.10%max |
| Na2O | 0.30%max |
| Melting point(℃) | 2250 |
| Real density(g/cm3) | 3.90min |
| Refractoriness （℃） | ≥1900 |
| Color | White |
| Size | 0-1mm |
Product features of white fused alumina for refractories 0-1mm:
- High hardness: Mohs hardness is 9.0, and 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 thermal shock.
- PH value: White fused alumina is a neutral substance with a PH value of 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 for refractories 0-1mm:
- Refractory aggregate for ladle in the steel-making industry.
- Kiln construction.
- Furnace building.
- Refractory bricks.
- Ceramic Tiles special ceramics.
- Technical ceramics.
White Fused Alumina（FAQ）
What’s lead time for bulk order?
1)for 5~25 tons, it takes around 10~15days. 2)For 26~200 tons,20-40days We will try to deliver it with the promise of quality guarantee as soon as possible
What is the d50 value?
The d50 indicates the mean particle size. d50 means that 50% of particles fall within the specified grain size.
Form and shape of the abrasive:
This decision is made by determining how the abrasive will be used by the individual. Abrasives are sold in forms such as sheets, large/small discs, belts, and large/small rolls. Selecting the right form is determined by whether the abrasive will be used for hand. sanding, applied to a large disc
Can you customized quality, size, package according to customer?
Yes, of course. The OEM is available. We will do the creation in your requirement and make ur image come true.
What is the hardness?
Hardness is rated from A-Z with ‘A’ being the weakest bond and ‘Z’ being the strongest. A weak bond is preferred for grinding harder materials while a stronger bond is desired for softer materials. A typical weak bond for steel would be in the ‘F, G or H’ range. A
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