Aluminum Oxide

Brown fused aluminum oxide abrasives are engineered to meet the requirements of pressure blast operations.  Popular applications include:

  • surface preparationblasting media
  • coatings and paint removal
  • heat treat and mill scale removal
  • cleaning surface contaminants
  • imparting anchor patterns
  • surface blending
  • mold cleaning
  • glass etching
  • monument lettering.

 

 

 

blasting media

Typical Chemical Analysis

Al2O3                         94.50%

TiO2                            3.50

SiO2                            .63

Fe2O3                        .32

 

 

Standard Grit Sizes: 16-240 (Other sizes available)

 

Our Brown Fused Aluminum Oxide can be certified to meet most of today’s standard specifications including Military, Aerospace and Automotive specifications.

 


Material Specifications

Origin:                                 China

Hardness:                          2000-2200 Knoop (9.0 Mohs)

True Density:                    3.96 gm/cc

Bulk Density:                    112-138 lbs/ft3

Melting Point:                  2000° C

Crystal Form:                   Al2O3 Alpha Alumina

Chemical Nature:           Amphoteric


Grit Size Sieve Range Sieve Opening

(Inches)

Sieve Opening

(Millimeters)

Sieve Opening

(Microns)

Surface Finish

(RMS)*

16 10-25 .0787-.0280 2.00-0.71 2000-710 490
20 10-30 .0787-.0234 2.00-0.59 2000-590 440
24 14-40 .0555-.0165 1.41-0.42 1141-420 380
30 16-45 .0469-.0139 1.19-0.35 1190-350 330
36 18-50 .0394-.0117 1.00-0.297 1000-297 280
46 25-70 .0278-.0083 0.71-0.210 710-210 245
54 30-80 .0232-.0070 0.59-0.177 590-177 225
60 35-100 .0197-.0059 0.50-0.149 500-149 205
80 45-140 .0139-.0041 0.35-0.105 350-105 150
100 60-230 .0098-.0025 0.250-0.063 250-63 120
120 70-270 .0083-.0021 0.210-0.053 210-53 105
150 80-325 .0070-.0017 0.177-0.044 177-44 100
180 100-400 .0059-.0015 0.149-0.037 149-37 95
220 120-30 microns .0049-.0012 0.125-0.030 125-30 90
240 140-20 microns .0041-.0008 0.105-0.020 105-20 90
*Test parameters:  direct pressure machine, 70 PSI, black iron

samples, 100-150 RMS original finish, 3/8” nozzle, 90-deg blast angle

 

Contact Us with questions or to place your order!