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WINOA IKK White Fused ALUMINA

Made in: Japan
Manufacturer: WINOA IKK JAPAN CO., LTD
Model: White Fused ALUMINA

Features

(1) Obtained by pulverizing alumina refined by the Bayer method.

(2) Compared to brown fused alumina, it has slightly higher hardness and slightly lower toughness.

■ White Alumina (WA), with special adhesion and coating, is used to make abrasives for polishing very hard steels such as high carbon steels, alloy steels and high speed steels.

■ Applications other than abrasives include precision casting sand, spray coating materials, catalyst materials, high-temperature ceramics, and super refractories.

Specifications

Chemical composition
(% by weight)
Grit no.Al2O3 _ _ _Na2O _ _
#4 – #90≧98.5≤0.5
#100 – #240≧98.5≤0.7
basic mineralsα – Al2O3 _
crystal diameter600-1400 microns
true specific gravity>3.95
The bulk density1.75-1.85 g/cm³
Knoop hardness200-2300kg/mm²
New Mohs hardness12 (Old Morse, 9)
Toughness (single grain crushing strength)0.72kg
Basic granularity
Grit no.micronGrit no.micron
82800-2360150106-75
Ten2360-200018090-63
122000-170022075-53
141700-140024075-53
161400-1180Fine particle size below
201180-100024087.5-73.5
221000-85028073.5-62
24850-71032062-52.5
30710-60036052.5-44
36600-50040044-37
40500-42550037-31
46425-35560031-26
54355-30070026-22
60300-25080022-18
70250-212100018-14,5
80212-180120014.5-11.5
90180-150150011.5-8.9
100150-12520008.9-7.1
120125-10625007.1-5.9
Packing25kg PP bag (paper bag, flexible container bag)
place of originChina

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