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Typical Properties of Selected Specialty Powders & Grains

BlastingAluminum Oxide(“Brown Fused”) White
Fused Aluminum Oxide
Black
Silicon Carbide
Glass
Bead
Physical FormBlocky, solid, angularBlocky, solid, angularBlocky, solid, sharpSpherical, solid
ColorBrownWhiteBlackClear
Specific Gravity3.983.963.20
Bulk Density2.031.941.52
Hardness:Knoop 100  205020002450
Typical Chemical AnalysisAl2O3 – 96-97%TiO2 – 2.75%SiO2 – 0.61%Fe2O3 – 0.54%Al2O3 – 99.75%SiO2 – 0.02%Fe2O3 – 0.04%Na2O – 0.2%SiC – 97.80%SiO2 – 1.26%Si – 0.49%Fe – 0.15%Al – 0.10%

C – 0.20%

SiO2 – 71.03%Al2O3 – 1.31%Fe2O3 – 0.18%BaO – 0.03%CaO – 0.44%

MgO – 3.76%

Na2O – 16.52%

K2O – 0.39%

Available Grit Sizes
and Powder Sizes
8-240280-12008-240280-12008-240280-1200Mil Sizes3 to 13
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