Brown Aluminum Oxide Abrasive Grain

Description:
Brown fused alumina is made of high-quality bauxite, anthracite and iron filings. It is cooled and smelted in a high temperature by more than 2000 degrees in an electric arc. It is crushed and shaped by a jaw crusher and a ball mill. After magnetic separation, then sieve separated to get various kinds. Its compact texture, high hardness, suitable for the manufacture of ceramics, grinding of high tensile metal and grinding, polishing, sandblasting media, precision casting, etc., can also be used to produce advanced refractory materials.

Application:
Brown fused alumina is widely used as a raw material in many industries：
1. F-grit for bonded abrasives such as resin bonded grinding wheels, vitrified grinding wheels
2. P-grit for coated abrasives such as sandpaper, sanding belts
3. Blasting media, metal preparation
4. Laminates, coatings, lapping, polishing
5. Anti-slip applications like floor, ceramics, auto brake parts

The difference between F-grit and P-grit abrasive grains:
F-grit is more suitable for bonded abrasive tools.
P-grit is more suitable for coated abrasive tools. It is with a closer tolerance size distribution, lower density, and better self-sharpening ability than non P-grit abrasives, which means that they offer a more consistent surface finish.

Typical Chemical composition(F80)
AL2O3 95.97%
Fe2O3 0.19%
Si2O 0.71%
Ti2O 2.63%
CaO 0.32%
MgO 0.20%
LOI max0.09%
Magnetic content /
Typical physical properties
Basic minerals: Al2O3
Hardness: Mohs 9.0
Melting Point: 2200 ℃
Maximum service temperature 1850℃
Specific Gravity: 3.95g/cm3
True Density: ≥3.6g/cm3
Bulk density(LPD): 1.53-1.99 g/cm3
Color: Brown
Particle shape: Trigonal
Available grits
Grain for bonded abrasive （P graded grain） 8-80#
90-150#
180-240#
Grain for coated abrasive （F graded grain） 8-80#
100-150#
180-220#
*customized sizes are available upon request.

Contact person:Pan Chen
Whatsapp/Mobile:0086 13526538098