Black aluminium oxide/black fused alumina BA
Al2O3 78%.......Fe2O3 5.0%........SiO2 9.0%........TIO2 1.5-3.0%....Ture density 3.61% hardness(mohs) 9 materials Bauxite
Black aluminium oxide(lower aluminium oxide abrasive)is a new type abrasive material for polishing various metal.Black aluminium oxide abrasive is featured with high hardness,strong tenacity,good self-sharpening,better cohesisness,higher durability,less heat generated in grinding and giving the metal works high finish,less power weakened in grinding
Grit size: 16#,20#,24#30#,36#,46#,54#,60#,80#,100#,120#,150#,180#,220#
Micropowder:240#,280#,320#,360#,400#,500#,600#,800#,1000#,1200#,1500#
2000#,2500#,3000#,4000#
Refractory grade:1-0mm,3-1mm,5-3mm,5-8mm -200mesh,-240mesh,-320mesh
Chemical composition
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Grit size
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Al2O3
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Fe2O3
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SiO2
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TiO2
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10#-220#
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78
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5.0
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9.0
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1.5-3.5
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240#
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66
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5.0
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10.0
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1.5-3.0
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|
color
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black
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Hardness(mohs)
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9
|
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Ture hardness
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3.9
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Application
It is mostly used in grindin and polishing stainless steel,metal works ,optical glass,bamboo or articles.And it is also the new grinding material of producing colophony grinding wheels,slice,and emery cloth