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
|
Grit size |
Al2O3 |
Fe2O3 |
SiO2 |
TiO2 |
|
10#-220# |
78 |
5.0 |
9.0 |
1.5-3.5 |
|
240# |
66 |
5.0 |
10.0 |
1.5-3.0 |
|
color |
black |
|||
|
Hardness(mohs) |
9 |
|||
|
Ture hardness |
3.9 |
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
