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[China]
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Address: Chuanbu Village,Ceramics Industrial Park,Dingshu Town,Yixingcity,China
Contact name:Selena
yixing haiyu refractory co.,ltd |
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white fused alumina ceramic membrane special purpose fine grinding of glass beads metal fog surface processing
Specification: W40
White corundum powder is a good insulator, with strong cutting ability, mainly suitable for grinding and polishing precision objects, or as advanced refractory materials. At the same time, due to the particularity of white corundum powder itself, it has also become the preferred abrasive for more and more high-end industries.
AVERAGE CHEMICAL COMPOSITION(TYPICAL)
| Al2O3 | Fe2O3 | Na2O | MgO | K2O | CaO | SiO2 |
| 99.25-99.7% | 0.01-0.08% | 0.2-0.4% | ≤0.01% | ≤0.02% | ≤0.04% | ≤0.1% |
PHYSICAL PROPERTIES(TYPICAL)
Moh's hardness | proportion | Banked density | PH value | Refractoriness |
| 9.0 | 3.95g/cm3 | 1.75-1.95g/cm3 | 7.0 | 2100℃ |
Composition standard of grit size GB/T 2479-2008
| Particle size | D0(μm) | D3(μm) | D50(μm) | D94(μm) |
| #240 | below 127 | below 103 | 57.0±3.0 | Above 40 |
| #280 | below 112 | below 87 | 48.0±3.0 | Above 33 |
| #320 | below 98 | below 74 | 40.0±2.5 | Above 27 |
| #360 | below 86 | below 66 | 35.0±2.0 | Above 23 |
| #400 | below 75 | below 58 | 30.0±2.0 | Above 20 |
| #500 | below 63 | below 50 | 25.0±2.0 | Above 16 |
| #600 | below 53 | below 41 | 20.0±1.5 | Above 13 |
| #700 | below 45 | below 37 | 17.0±1.5 | Above 11 |
| #800 | below 38 | below 31 | 14.0±1.0 | Above 9.0 |
| #1000 | below 32 | below 27 | 11.5±1.0 | Above 7.0 |
| #1200 | below 27 | below 23 | 9.5±0.8 | Above 5.5 |
| #1500 | below 23 | below 20 | 8.0±0.6 | Above 4.5 |
| #2000 | below 19 | below 17 | 6.7±0.6 | Above 4.0 |
| #2500 | below 16 | below 14 | 5.5±0.5 | Above 3.0 |
| #3000 | below 13 | below 11 | 4.0±0.5 | Above 2.0 |
| #4000 | below 11 | below 8.0 | 3.0±0.4 | Above 1.8 |
| #6000 | below 8.0 | below 5.0 | 2.0±0.4 | Above 0.8 |
| #8000 | below 6.0 | below 3.5 | 1.2±0.3 | Above 0.6 |
