Origin	China
Model Number	AE-17HM
Brand Name	Tongkai
Abrasive Grain Sizes	F8-F220
Material	Brown fused alumina
Usage	for grinding wheel or cutting disc

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 centi-degree
Magnetic Material       0.0076%
Toughness               59.78
Hydrophilic             58.00
 
 
  Bulk Density Test Value (g/cm3)  
 
Grit No F12  F14  F16  F20  F22  F24  F30  F36  F40  F46
B.D     1.98 1.97 1.96 1.91 1.91 1.91 1.90 1.85 1.80 1.80
Grit No F54  F60  F70  F80  F90  F100  F120  F150  F180  F220
B.D     1.75 1.75 1.75 1.74 1.73 1.73 1.73 1.70 1.69 1.64
 
 
Grit Size Available (F)  
 
8 12 14 16 20 22 24 30 36 40 46
54 60 70 80 90 100 120 150 180 220  
 
  Packing Way Selection  
 
a. In 25kg plastic woven bags.
b. In 1000kg big bag.
c. 40 x 25kg plastic woven bags in one big bag.
d. 40 x 25kg plastic woven bags on pallet.
e. 40 x 25kg paper bags on pallet.
f. According to client's special requirement.