Best Price for Alumina Abrasive Powder - Micro Sodium White Fused Alumina – Yufa
Best Price for Alumina Abrasive Powder - Micro Sodium White Fused Alumina – Yufa Detail:
Compared With β-Al2O3 And α-Al2O3
Sodium oxide is a harmful impurity to white corundum. It forms β-Al2O3 with alumina in the molten state, and the amount of production increases with the increase of sodium oxide content. Na2O in white corundum mainly appears in the form of Na2O·11AL2O3 (β-Al2O3). For example, if the alumina raw material contains more than 0.6% sodium oxide, the white corundum produced with it will contain more than 10% β-Al2O3.
Compared with β-Al2O3, α-Al2O3 has ‘three highs’. First, it has a high melting point, Secondly a high density, and thirdly a high hardness, as shown in the following table:
| Phase | Chemical compositions | Crystal System | Density (g/cm3） | Micro hardness (Kg/mm²) | Melting point (℃) |
| α-Al2O3 | Al2O3 | Hexagonal | 4.0 | 2300 | 2050 |
| β-Al2O3 | Na2O·11Al2O3 | Trigonal | 3.24 | 1300~1600 | 1600 |
Advantages
The micro-sodium white fused alumina improves the melting point, particle density, bulk density, flexural strength, compressive strength, true density, hardness and other properties of white corundum products, laying a solid foundation for the product to enter the high-end market.
Applications
It is suitable for processing alloy steel, high hardness steel, high carbon steel and other materials with high hardness and high tensile strength.
Chemical Composition
| Chemical Composition | Na2O % ≤ | Al2O3 % ≥ | SiO2 % ≤ | Fe2O3 % ≤ |
| Gurantee Value | 0.06 | 99.7 | 0.1 | 0.05 |
| Typical Value | 0.02 | 99.89 | 0.04 | 0.03 |
Product detail pictures:
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Innovation, good quality and reliability are the core values of our enterprise. These principles today extra than ever form the basis of our success as an internationally active mid-size organization for Best Price for Alumina Abrasive Powder - Micro Sodium White Fused Alumina – Yufa , The product will supply to all over the world, such as: British, Japan, Sao Paulo, Our staffs are adhering to the "Integrity-based and Interactive Development" spirit, and the tenet of "First-class Quality with Excellent Service". According to the needs of every customer, we give customized & personalised services to help customers achieve their goals successfully. Welcome clients from home and abroad to call and inquire!
By Erin from Paraguay - 2017.06.29 18:55
This company conforms to the market requirement and joins in the market competition by its high quality product, this is an enterprise that have Chinese spirit.
By Ada from Jeddah - 2017.11.29 11:09
