It is one kind of Brown Aluminium Oxide grains with blocky grain shape and high bulk density. To get this kind of product, we treat the regular grains at a medium high temperature to give a light blue colour, the purpose is to renovate the crack on the surface and interior of crystal and then to improve the toughness and durability of the grains. As an abrasive, the AE-17HM is mainly used in making vitrified and organic bonded grinding wheels. The cost of AE-17HM is more economic than AE-17H. Typical Chemical Analysis
Al2O3 Fe2O3 TiO2 SiO2 CaO
95.84% 0.06% 2.40% 0.93% 0.22%
Physical Properties
Color Light blue
Shape Blocky, tough and sharp
Crystal Form Alpha-alumina trigonal system
True Specific Gravity
3.96 g/cm3
Hardness
2090 Knoop scale; 9.0 Mohs scale
Melting Temperature
About 2050 ¡æ
Magnetic Material 0.0076%
Toughness 59.78
Hydrophilic 58.00
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