Particle Size Conversion Chart - Ansi Page 2
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1
2Micro Grit
Millimeters
Microns
Inches
ANSI Grit
0.0500
50.0
0.00200
240
0.0395
39.5
0.00156
280
0.0295
29.5
0.00116
320
0.0230
23.0
0.00091
360
0.0183
18.3
0.00072
400
0.0139
13.9
0.00055
500
0.0106
10.6
0.00042
600
0.0077
7.7
0.0003
800
0.0058
5.8
0.00023
1000
0.0038
3.8
0.00015
1200
0.0450
45
0.0018
F
0.0275
27.5
0.0011
FF
0.0160
16
0.0063
FFF
0.0110
11
0.00043
FFFF
*A grit size is defined by the distribution of grits retained on a sieve set up that meets
the requirements of ANSI Table 2 or 3. The numbers in the two sieve columns in this
chart represent the midpoint sieve for the grading of the corresponding grit size. than on
any other in the sieve set up.
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