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Abrasive Grit Size Standard of China

Range of Grain Sizes

Grit Size No. Nominal Particle Size Range
(Micron)
Grit Size No. Nominal Particle Size Range
(Micron)
4# 5600-4750 70# 250-212
5# 4750-4000 80# 212-180
6# 4000-3350 90# 180-150
7# 3350-2800 100# 150-125
8# 2800-2360 120# 125-106
10# 2360-2000 150# 106-75
12# 2000-1700 180# 90-63
14# 1700-1400 220# 75-53
16# 1400-1180 240# 75-53
20# 1180-1000 W63 63-50
22# 1000-850 W50 50-40
24# 850-710 W40 40-28
30# 710-600 W28 28-20
36# 600-500 W20 20-14
40# 500-425 W14 14-10
46# 425-355 W10 10-7
54# 355-300 W7 7-5
60# 300-250 W5 5-3.5

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Last modified: 2005-04-04