GOST Standard Electrically Fused Alumina 800# White Fused Alumina Polishing Powder
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GOST Standard Electrically Fused Alumina 800# White Corundum Polishing Powder
White corundum micropowder is a grinding-grade electrically fused alumina micropowder. It features high hardness, strong thermal stability, excellent wear resistance, uniform particle size distribution, stable chemical properties, and a high refractory temperature. It is also widely used in wear-resistant coatings, industrial ceramics, and other industries.
White fused aluminum oxide powder is an excellent polishing powder for stainless steel, aluminum alloy, copper, glass, and other materials. White fused aluminum oxide powder from us is an electrofused aluminum oxide powder. It is an aggressive grinding powder with high hardness, good toughness. White aluminum oxide is suitable not only for direct polishing with a micro polishing machine, but also suitable for making lapping products such as polishing wax, polishing stone, polishing liquid, etc. In the meanwhile, white aluminum oxide is an ideal additive for wear-resistance coating and ceramics.
Features of GOST Standard Electrically Fused Alumina 800# White Corundum Polishing Powder:
High purity of alumina (above 99.5%), resulting in high hardness, strong grinding ability, and high grinding efficiency.
Produced using a water-based process, ensuring more uniform particle size, no large particles, and no scratching of the workpiece surface.
Strong chemical stability, with high resistance to acids and alkalis, and insoluble in water.
Strong thermal stability, with wear resistance unaffected at high temperatures.
High whiteness, which does not affect the color of coatings and other products.
Wide range of applications, not only for grinding and polishing but also as an additive material for coatings, ceramics, rubber, plastics, and composite materials.
Product Feature of white fused aluminum oxide powder
The Al2O3 purity is high(99%min). So the hardness & grinding ability is high with good grinding efficiency.
High wear-resistance. Even in high-temperature circumstances, the strength is still excellent.
The white fused aluminum oxide powder is suspension treated by water. So it is of flowability and easy to scatter.
Low oil absorption especially for water-based paint.
Neutral property with PH value around 7-8.
High whiteness. It doesn’t affect the color of paints or coatings adding Al2O3 powder.
Resistant to most corrosive alkali and acid. It doesn’t dissolve in water.
Resistant to high temperature up to 1900 °C.
Good particle size consistency without big size grains. So it prevents scratch on the grinding substrate.
Physical Indicators
Color | White |
|---|---|
Hardness | Mohs 9.0 |
Operating Temperature | 1900 ℃ |
Melting Point | 2250 ℃ |
Specific Gravity | 3.95g/cm3 |
Bulk Density | 3.6g/cm3 |
Packing Density | 1.55-1.95 g/cm3 |
Crystal Shape | Multi-angular |
Chemical Composition:
JIS240#-JIS2500# | JIS3000#-JIS4000# | JIS6000#-JIS10000# | |
|---|---|---|---|
AL2O3 | 99.30% min | 99.10% min | 98.8% min |
SiO2 | 0.15% max | 0.18% max | 0.20% max |
NA2O | 0.32% max | 0.35% max | 0.38% max |
Fe2O3 | 0.10% max | 0.10% max | 0.10% max |
CaO | 0.05% max | 0.05% max | 0.05% max |
Particle Size Grades of White Corundum Micropowder:
1. JIS Japanese Standard:
JIS Particle Size | D0 (μm) | D3 (μm) | D50 (μm) | D94 (μm) |
|---|---|---|---|---|
#240 | ≤ 127 | ≤ 103 | 57.0±3.0 | ≥ 40 |
#280 | ≤ 112 | ≤ 87 | 48.0±3.0 | ≥ 33 |
#320 | ≤ 98 | ≤ 74 | 40.0±2.5 | ≥ 27 |
#360 | ≤ 86 | ≤ 66 | 35.0±2.0 | ≥ 23 |
#400 | ≤ 75 | ≤ 58 | 30.0±2.0 | ≥ 20 |
#500 | ≤ 63 | ≤ 50 | 25.0±2.0 | ≥ 16 |
#600 | ≤ 53 | ≤ 41 | 20.0±1.5 | ≥ 13 |
#700 | ≤ 45 | ≤ 37 | 17.0±1.5 | ≥ 11 |
#800 | ≤ 38 | ≤ 31 | 14.0±1.0 | ≥ 9.0 |
#1000 | ≤ 32 | ≤ 27 | 11.5.±1.0 | ≥ 7.0 |
#1200 | ≤ 27 | ≤ 23 | 9.5±0.8 | ≥ 5.5 |
#1500 | ≤ 23 | ≤ 20 | 8.0±0.6 | ≥ 4.5 |
#2000 | ≤ 19 | ≤ 17 | 6.7±0.6 | ≥ 4.0 |
#2500 | ≤ 16 | ≤ 14 | 5.5±0.5 | ≥ 3.0 |
#3000 | ≤ 13 | ≤ 11 | 4.0±0.5 | ≥ 2.0 |
#4000 | ≤ 11 | ≤ 8.0 | 3.0±0.4 | ≥ 1.8 |
#6000 | ≤ 8.0 | ≤ 5.0 | 2.0±0.4 | ≥ 0.8 |
#8000 | ≤ 6.0 | ≤ 3.5 | 1.2±0.3 | ≥ 0.6 |
Applications of White Corundum Micropowder:
1. Wear-resistant agent: Used as a wear-resistant filler in products such as ceramic glazes, wear-resistant layers for wooden floors, wear-resistant coatings, wear-resistant adhesives, polyurethane resins, plastic glass, and composite brake pads.
2. Abrasive: Used for grinding materials such as hard alloys, non-ferrous metals, stainless steel, alloy products, and soda-lime glass.
3. Raw material for abrasive tools: Used as the main abrasive for oil stones, sandpaper, polishing wax, rubber grinding wheels, and grinding fluids, as well as an auxiliary material for diamond dry grinding discs.
4. Ceramics: Used in ceramic membranes, insulating ceramic plates, honeycomb ceramics, etc.
| Industry Category: | Chemicals/Carbon Materials/Graphite |
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