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Typical physical properties
Hardness 9.1 mohs
Grain shape angular, sharp edged
Melting point approx. 2050°C
Specific gravity approx. 3,9 – 4,1 g/cm3
Bulk density
(depending on granular size)
approx. 1,4 – 2,1 g/cm3

 

Typical chemical analysis
Al2O3 99,2% 99,7%
Na2O 0,14 %
Fe2O3 0,03 %
SiO2 0,01 %
CaO 0,02 %
TiO2 0,02 %
MgO 0,01 %

 

Packaging
25 kg/bag (included inner bag)
1 ton loose in big bag (included 40 bags)

 

Available popular sizes:

Model Size Density
(g/cm3 min)
Hardness Specific gravity
(g/cm3 min)
Microns (μm) Inch
WFA 24# 850 - 710 0.033 - 0.0028 3.95 9.1 1.75 - 1.95
WFA 36# 600 - 500 0.0236 - 0.0196 3.95 9.1 1.75 - 1.95
WFA 46# 425 - 355 0.0178 - 0.0013 3.95 9.1 1.75 - 1.95
WFA 80# 212 - 180 0.008 - 0.007 3.95 9.1 1.75 - 1.95
WFA 120# 125 - 106 0.0049 - 0.0042 3.95 9.1 1.75 - 1.95
WFA 150# 106 - 75 0.0042 - 0.0029 3.95 9.1 1.75 - 1.95