Zirconium Corundum ZA25 ZA40
Chemical Composition(%)
|
Items
|
Al2O3
|
ZrO2
|
TiO2
|
Fe2O3
|
SiO2
|
|
ZA25
|
68-72
|
24-30
|
≤1.5
|
≤0.5
|
≤1.0
|
|
ZA40
|
55-57
|
35-44
|
≤1.5
|
≤0.5
|
≤1.0
|
Physical Properties
|
Crystal Form
|
Monoclinic,tetragonal system
|
|
Reaction with acid and alkali
|
no
|
|
Reaction with carbon
|
Forming carbide since 1650C
|
|
Color
|
Grey
|
|
True Density
|
4.20g/cm3
|
|
Bulk Density
|
2.18g/cm3
|
|
Moh’s hardness
|
9.0
|
|
Knoop hardness
|
1450-2000kg/cm2
|
|
Melting point
|
1900C
|
|
Maximum service temperature
|
1700C
|
|
Specific heat capacity(cal/g.C)
|
0.2205(50-500C)
|
|
Heat conductivity
|
0.2718 cal/cm2.sec.C
|
|
Linear expansivity(X10-6)
|
6.82(100-700C)
|
Main Applications
1.Making zircon fused alumina brick and building materials
2.Used for making bonded abrasives products,and process of grinding,sandblasting,surface treatment of metal products and other materials.
3.With good melt erosion resistance,Zirconia fused alumina has good grinding effect on steel,iron casting,heat resistant steel and other alloy materials.
4.Zirconia fused alumina can be made for heavy duty Zirconia fused alumina grinding wheel,snagging,cutting disc,Fiber disc,grinding rails,high speed abrasive belts etc
5.Used for making coated abrasives products,
6.Used for making lapping paste,polishing wax,emery cloth,sandpaper etc
Available Sizes
0-0.5mm 0.5-1mm. 1-1.5mm 1-2mm 1-3mm
F4 F5 F6 F7 F8 F10 F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F120 F150 F180 F220
