aluminum oxide

Brown Fused Alumina

Description:

Aluminum Oxide is manufactured in an electric arc furnace that produces an extremely tough, long-lasting grain which is graded to exacting standards. The various macrogrit sizes may be used for all types of bonded abrasive and general industrial applications.

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Main Applications:

1) Abrasives:

 bonded  abrasives :  resin boned abrasives  cut off wheel ,ceramic grind wheel, Grinding stone, grinding wheel ,Grinding block polish wax

coated  abrasives  :  sand paper, sand belt ,sand cloth ,sander disc flap disc ,

2) Refractory material: Mainly used for abrasion and high temperature resistance,in oxidizable aggregate and filling of shaped and monolithic refractory in steel metallurgy, various industrial stoves, electric furnace etc.

3) Sandblasting abrasive: It is mainly used for various material work pieces to decontaminate,prevent corrosion,remove oxide skin,light-decorate,process pattern effect and so on.

4) Abrasion resistance ground : It is mainly used for nonslip of airport and road,chemical factory board paving and surface decorated material of dam.

5) Precision casting: casting technics of stainless steel and aluminum casting in coating.

Product Features

high hardness and purity  ,

Extremely  , sharp, and durable  

Angular shape and fairly high bulk density will produce a matte surface finish

Reusable many times because of its hardness and durability

High purity

no fracture or pulverization;

no crack or rust when made into abrasive tools

good crystallization state

 

Abrasive Grain Sizes:

brown fused alumina section  sand:   0-1mm, 1-3mm, 3-5mm, 5-8mm;

brown fused alumina fine sand(P/F): 

 8 #,16#,20#,24#,30#,36#,46#,60#,80#,100#,120#,150#,180#,200#,220#

brown fused alumina powder: 240#, 400#, 600#, 800#, 1000#. 1500#  

 

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Typical Chemical Analysis:

Aluminum Oxide (Al2O3)         Min.95.00%

Titanium Dioxide (TiO2)           Max.2.52%

Silicon Dioxide (SiO2)              Max.0.44%

Iron Oxide (Fe2O3)                  Max.0.3%

Others (MgO, CaO, Cr2O3)     Max.0.25%

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Physical Characteristics:

Crystal Form:         Alpha-Alumina

True Density:         3.95 g/cm3

Hardness:              Mohs 9.0

Melting Point:         2000°C

Color:                     Brown

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Bulk Density (g/cm3):

Grit       BD                    Grit           BD

8    2.03 – 2.13            60      1.74 – 1.88

10    1.97 – 2.12           70      1.72 – 1.86

12    1.94 – 2.09           80      1.71 – 1.85

14    1.92 – 2.07           90      1.67 – 1.81

16    1.90 – 2.05         100     1.64 – 1.78

20    1.87 – 2.03         120     1.63 – 1.77

24    1.85 – 1.99         150     1.62 – 1.76

30    1.81 – 1.95         180     1.60 – 1.74

36    1.79 – 1.93         220     1.58 – 1.72

46    1.77 – 1.91         240     1.56 – 1.70

54    1.76 – 1.90         

 

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Packaging & Shipping:

Normal packing:  1 MT / Big bag 

25kg/ woven bag, 40 Bags in a Big Bag

25kg/ woven bag, 40 Bags on wooden pallet