White Fused Alumina

Chemical compositions

Physical properties

Items

Value of specification (%)

Color

White

Al2O3

      99.20-99.7

MeLTPing point

2250 C

SiO2

      0.01-0.05

Bulk density

1.75-1.95g/cm3

Na2O

      0.23-0.35

Grain density

3.90g/cm3 min

Fe2O3

      0.04-0.08

Hardness

Morse hardness

9

Micro hardness

21600-22600kg/mm2

Package details

25kg PVC bags & 1 MT big bag

content of magnetic substance

0.0023%max

Usages

grinding media, sandblasting media;

surface cleaning, grit blasting,

lapping, polishing, grinding,

sandblasting, etching

mineral skin abrasion materials

metal finishing & surface preparation

refractors, ceramics, coatings

bonded & coated abrasives

dental lab products

Specifications

                  Sizes

Refractory grade

Grain/Grit size

8-5mm, 5-3mm, 3-1mm, 1-0mm

Fine powder

320F  280F   240F   200F 

180F  150F   100F

Abrasive grade

Sandblasting

grinding grade

F8-1500

P24-3000

Micro powder

Polishing grade

“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#