brown aluminium oxide

详情

Brown aluminium oxide/brown fused alumina is fused and crystallized under high temperature from a mixture of bauxite and other and other raw materials. It is characterized by its high hardness,good toughness and shape in size. Abrasives tools made of it are suitable for grinding metals of high-tensile strength such as: carbon steel,general-purpose alloy steel,annealed malleable iron and hard broze,etc.It also can be used as refractory materials.

Abrasives grade

Grit size: *6#,*0#,*4#*0#,*6#,*6#,*4#,*0#,*0#,**0#,**0#,**0#,**0#,**0#

Micropowder:**0#,**0#,**0#,**0#,**0#,**0#,**0#,**0#,***0#,***0#,***0#

           ***0#,***0#,***0#,***0#

Refractory grade:**0mm,**1mm,**3mm,**8mm ***0mesh,***0mesh,***0mesh

The physical and chemical analysis

Al2O3  MIN *5%

TiO2   MAX  3.0%

Fe2O3 MAX .3%

SiO2   MAX 1.5%

Crystal sys tem  Hexagonal

Color            Brown

Micro hardness  HV********0

Grinding ability(compared with diamond as one) 0.*0

Hardness(mohs)  9

Ture density     3.9 g/cm3

Bulk density     1.***1.*5g/cm3