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WINOA IKK Brown Fused Alumina

Made in: Japan
Manufacturer: WINOA IKK JAPAN CO., LTD
Model: Brown Fused Alumina

Features

■ Obtained by melting a mixture of bauxite, coal and scrap iron in an electric furnace.

■ It has excellent hardness and toughness.
Abrasive products made from brown alumina (A) with special adhesives and coatings are suitable for polishing carbon steel, malleable cast iron, hardened bronze, etc.

(1) It is also used for other refractory materials, chemical fillers, precision castings, non-slip materials, and the like.

Specifications

Chemical composition
(% by weight)
Grit no. Al2O3 _ _ _ TiO2 _
#4 – #90 94.5-97
#100 – #180 ≧93.5 1.5 – 3.8
#220 – #240 ≧92.5
basic minerals α – Al2O3 _
crystal diameter 400-800 microns
true specific gravity >>3.90
The bulk density 1.68-2.01 g/cm³
Knoop hardness 1800-2200kg/mm²
New Mohs hardness 12 (Old Morse, 9)
Toughness (single grain crushing strength) 1.14kg
Basic granularity
Grit no. micron Grit no. micron
8 2800-2360 150 106-75
10 2360-2000 180 90-63
12 2000-1700 220 75-53
14 1700-1400 240 75-53
16 1400-1180 Fine particle size below
20 1180-1000 240 87.5-73.5
22 1000-850 280 73.5-62
24 850-710 320 62-52.5
30 710-600 360 52.5-44
36 600-500 400 44-37
40 500-425 500 37-31
46 425-355 600 31-26
54 355-300 700 26-22
60 300-250 800 22-18
70 250-212 1000 18-14,5
80 212-180 1200 14.5-11.5
90 180-150 1500 11.5-8.9
100 150-125 2000 8.9-7.1
120 125-106 2500 7.1-5.9
Packing 25kg PP bag (paper bag, flexible container bag)
place of origin China

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