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conversions equivalences

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Conversion table
Conversion factors in PDF

U.S. standard mesh sieve sizes and DIN sieve

sieve designation standard
sieve designation alternate "mesh"
nominal sieve opening (in.)
nominal wire diameter (mm)
2 mm
No. 10
0.0787
0.9
1.7 mm
No. 12
0.0661
0.8
1.4 mm
No. 14
0.0555
0.71
1.18 mm
No. 16
0.0469
0.63
1 mm
No. 18
0.0394
0.56
850 mm
No. 20
0.0331
0.5
710 mm
No. 25
0.0278
0.45
600 mm
No. 30
0.0234
0.4
500 mm
No. 35
0.0197
0.315
425 mm
No. 40
0.0165
0.28
355 mm
No. 45
0.0139
0.224
300 mm
No. 50
0.0117
0.2
250 mm
No. 60
0.0098
0.16
212 mm
No. 70
0.0083
0.14
180 mm
No. 80
0.0070
0.125
150 mm
No. 100
0.0059
0.1
125 mm
No. 120
0.0049
0.09
106 mm
No. 140
0.0041
0.071
90 mm
No. 170
0.0035
0.063
75 mm
No. 200
0.0029
0.05
63 mm
No. 230
0.0025
0.045
53 mm
No. 270
0.0021
0.036
45 mm
No. 325
0.0017
0.032
38 mm
No. 400
0.0015
0.03
32 mm
No. 450
0.0012
0.028
25 mm
No. 500
0.0010
0.025
20 mm
No. 635
0.0008
0.02


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