Gold Member Since 2013
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Dragon Abrasives Import & Export Co., Ltd.

Aluminum Oxide, Abrasive Grain, Artificial Corundum manufacturer / supplier in China, offering Technical Data Sheet for Brown Aluminum Oxide/Brown Corundum, Abrasive Pad - Glassfibre Backing Disc, White Fused Aluminum Oxide and so on.

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Supplier Homepage Product Abrasive Materials Technical Data Sheet for Brown Aluminum Oxide/Brown Corundum

Technical Data Sheet for Brown Aluminum Oxide/Brown Corundum

FOB Price: US $650 / Ton
Min. Order: 20 Tons
Min. Order FOB Price
20 Tons US $650/ Ton
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Production Capacity: 1200mt Per Month
Transport Package: Bag, Pallet
Payment Terms: T/T, D/P, Paypal

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Basic Info
  • Model NO.: TDS
  • Artificial Abrasive Type: Corundum Abrasives
  • Function: Surface Finish
  • Particle Size: Powder
  • Advantage: High Endurability, Toughness
  • Trademark: Dragon Abrasive
  • Origin: China
  • Natural Abrasive Type: Not Natural
  • Application: Abrasive Tools
  • Source: Artificial Abrasives
  • Hardness: Superabrasive
  • Port: Tianjin, Qingdao, Shanghai
  • Specification: FEPA F, P, JIS
  • HS Code: 28181010
Product Description
Brown fused alumina/ Brown Aluminum Oxide/ Brown aluminium oxide/ Brown Corundum is commonly used for vitrified and resin bonded tools, and for lapping,polishin, and sand blasting and sand cleaning and also used to make superior refractory products.
Chemical & Physical Properties
Crystal Form
Alpha alumina trigonal system
Chemical nature
Amphoteric
Reaction with acids
Subject to mild attack by aqua and/or hydrofluoric acid
Reaction with Alkalies
Very slight with strong hot solution only
Oxidation-reduction effects
None
True Density(g/cm3)
3.97
Hardness
Knoop(kg/cm2)
2000-2200
Moh's
9.0
Color
Dark Brown
Color after firing
Light blue
Melting point
2000°C
Max Usable temperature
1900°C
Specific heat (cal/g.°C)
0.26(20-29°C)
Coefficient of thermal conductivity 
(cal/cm2.sec.
°C)
Room temperature
900°C
0.047
0.013
Electrical resistivity (Wcm)
30°C300°C900°C1600°C
1016
1013
105
104
Coefficient of liner expansion     (x10-6)
7-9(0-1600°C)
 
Chemical Composition (% by weight)
Grit Item
10 - 90
100 - 180
220 - 220
230-400
500-1200
Al2O3
94.5 - 97.0
93.5 min
92.5 min
91.0 min
89.0 min
TiO2
1.5 - 3.8
1.5 - 3.8
1.5 - 3.8
4.0 max
4.0 max
 
Magnetic Matters Contents (% by weight)
Grit No.
Magnetic Matters Content
16#-30
<0.0380
36#-60#
<0.0280
70-120#
<0.0230
150#-220#
<0.0170
 
Available grain sizes
Grit No.MicronGrit No.MicronGrit No.Micron
102360 ~ 200030710 ~ 60080212 ~ 180
122000 ~ 170036600 ~ 50090180 ~ 150
141700 ~ 140040500 ~ 425100150 ~ 125
161400 ~ 118046425 ~ 355120125 ~ 106
201180 ~ 100054355 ~ 300150106 ~ 75
221000 ~ 85060300 ~ 25018090 ~ 63
24850 ~ 71070250 ~ 21222075 ~ 53
 
Available mircron powder sizes
China GB 2477-83
 
JIS
FEPA(84) / DIN(70)
ISO(77)
Grit No.
Norminal size range(µm)
Grit No.
ds50 value (µm)
Grit No.
ds50 value (µm)
 
Grit No.
ds50 value (µm)
Standard werte der Mikro-F-Reihe
Sedigraph 5000D
 
 
240
60.0±4.0
 
 
 
P240
58.5±2.0
 
 
280
52.0±3.0
 
 
 
P280
52.2±2.0
W63
63 - 50
320
46.0±2.5
F230/53
53±3.0
50.0±3.0
P320
46.2±1.5
W50
50 - 40
360
40.0±2.0
F240/45
44.5±2.0
42.0±2.0
P360
40.5±1.5
 
 
400
34.0±2.0
 
 
 
P400
35.0±1.5
W40
40 - 28
500
28.0±2.0
F280/37
36.5±1.5
34.5±1.5
P500
30.2±1.5
 
 
600
24.0±1.5
F320/29
29.2±1.5
27.7±1.5
P600
25.8±1.0
W28
38 - 20
700
21.0±1.3
F360/23
22.8±1.5
21.6±1.5
P800
21.8±1.0
 
 
800
18.0±1.0
F400/17
17.3±1.0
16.5±1.0
P1000
18.3±1.0
W20
20 - 14
1000
15.5±1.0
F500/13
12.8±1.0
12.3±1.0
P1200
15.3±1.0
W14
14 - 10
1200
13.0±1.0
 
 
 
 
 
 
 
1500
10.5±1.0
F600/9
9.3±1.0
9.0±1.0
 
 
W10
10 - 7
2000
8.5±0.7
 
 
 
 
 
W7
7 - 5
2500
7.0±0.7
F800/7
6.5±1.0
6.3±1.0
 
 
W5
5 - 3.5
3000
5.7±0.5
F1000/5
4.5±0.8
4.5±0.8
 
 
 
 
 
 
F1200/3
3.1±0.5
3.1±0.5
 
 
for general purposes
for general purposes
for bonded abrasives
for coated abrasives
 
Brown Fused Alumina Refractories (% by weight)
Group Sizes of BFA
Mixed Sizes of BFA
Sizes
(mm)
Chemical Content 
Sizes
(mm)
Chemical Content 
8-5 
5-3 
3-1 
1-0
Al2O3>94.50
SiO2<1.2 
Fe2O3<0.2
TiO2<3.8 
CaO<0.5 
MgO<0.4
25-0 
10-0 
5-0 
3-0
Al2O3>94.50
SiO2<1.2
Fe2O3<0.2 
TiO2<3.8
 
Application
Vitrified tools         
Lapping          
Resinoid tools         
Blasting          
Polishing             
Scrubing         
Tumbling              
Deburring       
Self-tumbling       
Non-slip          
Lapping compound
Wire saw
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