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White fused alumina was made from the high quality alumina by melting above 2000 in the electric arc furnace and cooling. It is white with the main crystal phase alpha-Al2O3.The white alumina produced in titling electric arc furnace has the advantage of high bulk density and low porosity and the volume stability and thermal shock resistance can be improved.
¤@¡A¥Dnª«²z¯S©ÊMain Physical Properties
²ö¤óµw«× MOHS HARDNESS
9.0
°ï¿n±K«× BULK DENSITY
1.75-1.95g/cm3
¤ñ« SPECIFIC GRAVITY
3.95g/cm3
Åé¿n±K«×
3.60
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ÄÝ©Ê properties
³W®æ Type
·L¯» Micropowder
W
W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5 W2.5 W1.5 W0.5
FEPA
F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000
JIS
240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000# 8000#
«OÃÒÈGuarantee Value
¨å«¬ÈTypical Value
¤Æ¾Ç¦¨¤À
Chemical
Composition
Al2O3
99
99.20
SiO2
0.1
0.08
Fe2O3
0.1
0.06
Na2O
0.4
0.32
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