Product Description
Spherical alpha-Al2O3 powder / alumina spherical shape powder 99.9 99.99
Al2O3 Alumina Spherical Powder 5-20um
Al2O3 Alumina Spherical Powder 15-45um
Alumina Al2O3 Powder 45-73um
Spherical alumina is basically alumina "shaped" in a high temperature fusion process. Spherical alumina therefore has the same intrinsic properties as any other alumina. Its chemical formula is Al2O3.
At Sibelco high purity aluminas are being used to make spherical alumina.Aluminium Oxide is a white powdery material, Al2O3 has good electrical insulating properties while having relatively high thermal conductive properties (36 Wm−1K−1), furthermore characterised by:
High thermal conductivity
High inertness in various media
High density and, as a result, low oil absorption
High Mohs hardness of 9
High Refractive Index of 1.76
| Name |
Spherical Aluminum Oxide |
| Formula |
Al2O3 |
| Colour |
white powder |
| CAS NO. |
1344-28-1 |
| EINECS NO. |
215-691-6 |
| HS Code |
2818109000 |
| Melting point |
2054ºC |
| Purity |
99.9% 99.99% |
| Particle size |
5-20um 15-45um 45-73um |
| Density |
3.5 g/cm³ |
| Package |
Plastic Bottle/Metal Barrel 10kgs/25kgs |
| Origin |
Hebei,China |
Installation Instructions
It is a good insulating material with high hardness and excellent resistance to surface grinding, corrosion, cavitation and erosion. It is used for spraying of mechanical seals of pumps, piston rods of mud pumps, vanes of hydraulic turbines, valve heads, valve seats, godets, friction plates and other components.1. High filling density: With its large particle diameter and broad particle size distribution, realizes high-density filling for rubber and plastic and produces compounds with low viscosity and good fluidity.
2. High thermal conductivity: High filling density enables production of compounds with higher thermal conductivity and higher heat dissipation rate compared to crystalline silica.
3. Low abrasivity: Due to its Spherical shape, less-wearing of kneading machines, forming machines and dies.
Application
Spherical Al2O3 powder, alumina spherical shape powder, because of its high melting point, good thermal stability, good wear resistance, high mechanical strength, good electrical insulation, excellent corrosion resistance and other characteristics, is widely used in the electrical and electronic industry; Alpha alumina spherical shape powder as a filler in rubber and resin, the thermal conductivity of the mixture can be remarkably increased, the expansion coefficient can be reduced, and the strength of the mixture can be increased. Alpha Al2O3 spherical shape powder can be evenly dispersed in the organic body and the formation of the most closely stacked, get high filling, low viscosity, high thermal conductivity mixture. In same time, alpha Al2O3 spherical shape powder can reduce wear and tear of mixer, molding machines and mold equipments to extend the service life of equipments.
Packaging & Shipping
Al2O3 spherical powder making method: High temperature melt jet process production method
Al2O3 spherical powder / Alpha alumina spherical powder purity: 99.9%
Al2O3 spherical powder / Alpha alumina spherical powder color: white
Al2O3 spherical powder / Alpha alumina spherical powder APS: 800nm & 5um
Al2O3 spherical powder / Alpha alumina spherical powder Surface Area: 6-23m2/g (800nm); 2-8m2/g (5um)
Al2O3 spherical powder / Alpha alumina spherical powder density: 3.97 g/cm3
Company Profile
1. who are we?
We are based in Hebei, China, start from 2014, sell to South America(20.00%), Central America(10.00%), Western Europe(10.00%), Eastern Europe(10.00%), North America(10.00%), Southern Europe(5.00%), Northern Europe(5.00%), Domestic Market(5.00%), SoutheastAsia(5.00%), South Asia(5.00%), Mid East(5.00%), Oceania(5.00%), Eastern Asia(3.00%), Africa(2.00%). There are total about 101-200people in our company.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Zirconia, Alumina, Rare earth oxide, Rare earth fluoride, Rare earth chloride,Calcium Series
4. why should you buy from us not from other suppliers?
HEBEI SUOYI NEW MATERIAL TECHNOLOGY CO.,LTD is a professional manufacture high purity inorganic salts .High purity rare earth series and other products etc. We have factory. We are sure we can supply the high quality products with competitive price.
5. what services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF, EXW, DDP, DDU, Express Delivery;
Accepted Payment Currency: USD;
Accepted Payment Type: T/T,L/C,D/P D/A, MoneyGram, Credit Card, PayPal, Western Union;
Language Spoken: English, Chinese
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