China WA (320# 400# 500# 600#)Polishing Powder Properties

White fused alumina is very pure and extremely hard. Aluminum oxide is used to anchor pattern creation prior to coating or bonding, rust, scale removal, sweeping, matte surface finish of steel, stainless steel, aluminum, non-ferrous metals, glass, stone and other surfaces. It can be recycled and will not leave residues on the surface of the workpiece

Properties of  WA powder:

Typical Chemical composition
AL2O3 99.3%min
SiO2 0.06%
Na2O 0.3%max
Fe2O3 0.05%max
CaO 0.04%max
MgO 0.01%max
K2O 0.02#max
Typical physical properties
Hardness: Mohs:9.0
Maximum service temperature: 1900 ℃
Melting Point: 2250 ℃
Specific Gravity: 3.95g/cm3
Volume density 3.6g/cm3
Bulk density(LPD): 1.75-1.95 g/cm3
Color: White
Particle shape: Angular
Available size:
FEPA F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500
JIS 240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000# 10000#

SIZE DISTRIBUTION OF WA POWDER:

ITEM D0(um) D3(um) D50(um) D94(um)
#240 <127 <103 57.0±3.0 >40
#280 <112 <87 48.0±3.0 >33
#320 <98 <74 40.0±2.5 >27
#360 <86 <66 35.0±2.0 >23
#400 <75 <58 30.0±2.0 >20
#500 <63 <50 25.0±2.0 >16
#600 <53 <41 20.0±1.5 >13
#700 <45 <37 17.0±1.5 >11
#800 <38 <31 14.0±1.0 >9.0
#1000 <32 <27 11.5.±1.0 >7.0
#1200 <27 <23 9.5±0.8 >5.5
#1500 <23 <20 8.0±0.6 >4.5
#2000 <19 <17 6.7±0.6 >4.0
#2500 <16 <14 5.5±0.5 >3.0
#3000 <13 <11 4.0±0.5 >2.0
#4000 <11 <8.0 3.0±0.4 >1.8
#6000 <8.0 <5.0 2.0±0.4 >0.8
#8000 <6.0 3.5 1.2±0.3 >0.6

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