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Brown Fused Alumina 30#, 36# for Abrasive and Polishing

Min.Order: 10
Product origin: Shanghai, China
Infringement complaint: complaintComplaint
US$ 500 ~ 800

Description
Brown Fused Alumina 30#, 36# for Abrasive




Brown Fused Alumina Used for Blasting, Grinding, Polishing
Chemical & Physical Properties
Crystal FormAlpha alumina trigonal system
Chemical natureAmphoteric
Reaction with acidsSubject to mild attack by aqua and/or hydrofluoric acid
Reaction with AlkaliesVery slight with strong hot solution only
Oxidation-reduction effectsNone
True Density(g/cm3)3.97
HardnessKnoop(kg/cm2)2000-2200

 		Moh's9.0
ColorDark Brown
Color after firingLight blue
Melting point2000°C
Max Usable temperature1900°C
Specific heat (cal/g.°C)0.26(20-29°C)
Coefficient of thermal conductivity 
(cal/cm2.sec.°C)		Room temperature900°C

 		0.0470.013
Electrical resistivity (Wcm)30°C300°C900°C1600°C

 		10161013105104
Coefficient of liner expansion     (x10-6)7-9(0-1600°C)
Chemical Composition (% by weight)
Grit Item10 - 90100 - 180220 - 220230-400500-1200
Al2O394.5 - 97.093.5 min92.5 min91.0 min89.0 min
TiO21.5 - 3.81.5 - 3.81.5 - 3.84.0 max4.0 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



Application

1. Extremely hard, sharp, and durable abrasive

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

3. Abrasive is generally reusable many times because of its hardness and durability

4. Anchor pattern creation prior to coating or bonding

5.Rust, scale, or other tough contaminant removal

6. Application must tolerate some metal removal

7. Used for grinding and lapping as well as abrasive blasting




Packing

1. 25 pvc bags
2. 25KGS PVC BAGS+1MT BIG BAG
3.1MT Big Bag+Pallet
4.25KGS PVC BAGS+Pallet
Packaging can be customized according to customer requirement



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