| Sieve
Number or Size |
USBS
Sieve ASTM Designation |
M.M.
Microns |
Sieve
Opening |
Nominal
Wire Dia. |
M.M. |
Inches |
M.M. |
Inches |
4"
3-1/2"
3"
2-1/2"
2"
|
100mm
90mm
75mm
63mm
50mm |
100
90
75
63
50 |
4.00
3.50
3.00
2.50
2.00 |
6.30
6.08
5.80
5.50
5.05 |
0.2480
0.2394
0.2283
0.2165
0.1988 |
1-3/4"
1-1/2"
1-1/4"
1"
7/8" |
45mm
37.5 mm
31.5mm
25.0mm
22.4mm
|
45
37.5
31.5
25.0
22.4 |
1.75
1.50
1.25
1.00
0.875 |
4.85
4.59
4.23
3.80
3.50 |
0.1909
0.1807
0.1665
0.1496
0.1378 |
3/4"
5/8"
1/2"
7/16"
3/8" |
19.0mm
16.0 mm
12.5mm
11.2mm
9.5mm |
19.0
16.0
12.5
11.2
9.5
|
0.750
0.625
0.500
0.438
0.375 |
3.30
3.00
2.67
2.45
2.27 |
0.1299
0.1181
0.1051
0.0965
0.0894 |
5/16"
#3
#3-1/2
#4
#5 |
8.00mm
6.3mm
5.6mm
4.75mm
4.00mm |
8.00
6.3
5.66
4.75
4.00 |
0.312
0.250
0.223
0.187
0.157 |
2.07
1.82
1.68
1.54
1.37 |
0.0815
0.0717
0.0661
0.0606
0.0539 |
#6
#7
#8
#10
#12 |
3.35mm
2.80mm
2.36mm
2.00mm
1.70mm |
3.35
2.80
2.36
2.00
1.70 |
0.132
0.111
0.0937
0.0787
0.0661 |
1.23
1.10
1.00
0.900
0.810 |
0.0484
0.0430
0.0394
0.0354
0.0319 |
#14
#16
#18
#20
#25 |
1.40mm
1.18mm
1.00mm
850micron
710micron |
1.40
1.18
1.00
0.850
0.710 |
0.0555
0.0469
0.0394
0.0331
0.0278 |
0.725
0.650
0.580
0.510
0.450 |
0.0285
0.0256
0.0228
0.0201
0.0177 |
#30
#35
#40
#45
#50 |
600micron
500micron
425micron
355micron
300micron |
0.600
0.500
0.425
0.355
0.300 |
0.0234
0.0197
0.0165
0.0139
0.0117 |
0.390
0.340
0.290
0.247
0.215 |
0.0154
0.0134
0.0114
0.0097
0.0085 |
#60
#70
#80
#100
#120 |
250micron
212micron
180micron
150micron
125micron
|
0.250
0.212
0.180
0.150
0.125 |
0.0098
0.0083
0.0070
0.0059
0.0049 |
0.180
0.152
0.131
0.110
0.091 |
0.0071
0.0060
0.0052
0.0043
0.0036
|
#140
#170
#200
#230
#270 |
106micron
90micron
75micron
63micron
53micron |
0.106
0.090
0.075
0.063
0.053 |
0.0041
0.0035
0.0029
0.0025
0.0021 |
0.076
0.064
0.053
0.044
0.037 |
0.0030
0.0025
0.0021
0.0017
0.0015
|
#325
#400 |
45micron
38micron |
0.045
0.038 |
0.0017
0.0015 |
0.030
0.025
|
0.0012
0.0010 |
