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Standard Sieve
Series Specifications for Wire Cloth |
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The "Standard"
designations listed below correspond to the values for test sieve apertures recommended by
the International Standards Organization (ISO) Geneva, Switzerland. |
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"Alternate" designations are derived from
ASTM specification E-11-95 |
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Sieve Designation |
Nominal Sieve Opening |
Nominal Wire Diameter |
Suggested Screen |
Standard |
Alternate |
mm |
inches |
mm |
inches |
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| 125 mm |
5" |
125 |
4.921" |
8.00 |
.3149 |
5"
OP |
| 106 mm |
4.24" |
106 |
4.173" |
6.40 |
.2519 |
4-1/4"
OP |
| 100 mm |
4" |
100 |
3.937" |
6.30 |
.2480 |
4"
OP |
| 90 mm |
3-1/2" |
90 |
3.543" |
6.08 |
.2393 |
3-1/2"
OP |
| 75 mm |
3" |
75 |
2.952" |
5.80 |
.2283 |
3"
OP |
| 63 mm |
2-1/2" |
63 |
2.480" |
5.50 |
.2165 |
2-1/2"
OP |
| 53 mm |
2.12" |
53 |
2.086" |
5.15 |
.2027 |
2-1/8"
OP |
| 50 mm |
2" |
50 |
1.968" |
5.05 |
.1988 |
2"
OP |
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Sieve Designation |
Nominal Sieve Opening |
Nominal Wire Diameter |
Suggested Screen |
Standard |
Alternate |
mm |
inches |
mm |
inches |
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| 45 mm |
1-3/4" |
45 |
1.771" |
4.85 |
.1909 |
1-3/4"
OP |
| 37.5 mm |
1-1/2" |
37.5 |
1.476" |
4.59 |
.1807 |
1-1/2"
OP |
| 31.5 mm |
1-1/4" |
31.5 |
1.240" |
4.23 |
.1665 |
1-1/4"
OP |
| 26.5 mm |
1.06" |
26.5 |
1.043" |
3.90 |
.1535 |
1-1/16"
OP |
| 25.0 mm |
1" |
25.0 |
0.984" |
3.80 |
.1496 |
1"
OP |
| 22.4 mm |
7/8" |
22.4 |
0.881" |
3.50 |
.1377 |
7/8"
OP |
| 19.0 mm |
3/4" |
19.0 |
0.748" |
3.30 |
.1299 |
3/4"
OP |
| 16.0 mm |
5/8" |
16.0 |
0.629" |
3.00 |
.1181 |
5/8"
OP |
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Sieve Designation |
Nominal Sieve Opening |
Nominal Wire Diameter |
Suggested Screen |
Standard |
Alternate |
mm |
inches |
mm |
inches |
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| 13.2 mm |
.530" |
13.2 |
0.519" |
2.75 |
.1082 |
17/32"
OP |
| 12.5 mm |
1/2"
** |
12.5 |
0.492" |
2.67 |
.1051 |
1/2"
OP |
| 11.2 mm |
7/16" |
11.2 |
0.440" |
2.45 |
.0964 |
7/16"
OP |
| 9.5 mm |
3/8" |
9.5 |
0.374" |
2.27 |
.0893 |
3/8"
OP |
| 8.0 mm |
5/16" |
8.0 |
0.314" |
2.07 |
.0814 |
2-1/2
Mesh |
| 6.7 mm |
.265" |
6.7 |
0.263" |
1.87 |
.0736 |
3 Mesh |
| 6.3 mm |
1/4"
** |
6.3 |
0.248" |
1.82 |
.0716 |
3-1/4
Mesh |
| 5.6 mm |
No.
3-1/2 |
5.6 |
0.220" |
1.68 |
.0661 |
3-1/2
Mesh |
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**These sieve specifications are not in
the standard series, they are included due to popular usage. |
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Sieve Designation |
Nominal Sieve Opening |
Nominal Wire Diameter |
Suggested Screen |
Standard |
Alternate |
mm |
inches |
mm |
inches |
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| 4.75 mm |
No. 4 |
4.75 |
0.187" |
1.54 |
.0606 |
4 Mesh |
| 4.0 mm |
No. 5 |
4.00 |
0.157" |
1.37 |
.0539 |
5 Mesh |
| 3.35 mm |
No. 6 |
3.35 |
0.131" |
1.23 |
.0484 |
6 Mesh |
| 2.80 mm |
No. 7 |
2.80 |
0.131" |
1.10 |
.0433 |
7 Mesh |
| 2.36 mm |
No. 8 |
2.36 |
0.093" |
1.00 |
.0393 |
8 Mesh |
| 2.00 mm |
No. 10 |
2.00 |
0.078" |
0.90 |
.0354 |
9 Mesh |
| 1.70 mm |
No. 12 |
1.70 |
0.066" |
0.81 |
.0318 |
10 Mesh |
| 1.40 mm |
No. 14 |
1.40 |
0.055" |
0.72 |
.0285 |
12 Mesh |
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Sieve Designation |
Nominal Sieve Opening |
Nominal Wire Diameter |
Suggested Screen |
Standard |
Alternate |
mm |
inches |
mm |
inches |
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| 1.18 mm |
No. 16 |
1.180 |
0.0464" |
0.650 |
.0255 |
14 Mesh |
| 1.00 mm |
No. 18 |
1.000 |
0.0393" |
0.580 |
.0228 |
16 Mesh |
| 850 µm |
No. 20 |
0.850 |
0.0334" |
0.510 |
.0200 |
20 Mesh |
| 710 µm |
No. 25 |
0.710 |
0.0279" |
0.450 |
.0177 |
24 Mesh |
| 600 µm |
No. 30 |
0.600 |
0.0236" |
0.390 |
.0153 |
28 Mesh |
| 500 µm |
No. 35 |
0.500 |
0.0196" |
0.340 |
.0133 |
32 Mesh |
| 425 µm |
No. 40 |
0.425 |
0.0167" |
0.290 |
.0114 |
35 Mesh |
| 355 µm |
No. 45 |
0.355 |
0.0139" |
0.247 |
.0097 |
42 Mesh |
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Sieve Designation |
Nominal Sieve Opening |
Nominal Wire Diameter |
Suggested Screen |
Standard |
Alternate |
mm |
inches |
mm |
inches |
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| 300 µm |
No. 50 |
0.300 |
0.0118" |
0.215 |
.0084 |
48 Mesh |
| 250 µm |
No. 60 |
0.250 |
0.0098" |
0.180 |
.0070 |
60 Mesh |
| 212 µm |
No. 70 |
0.212 |
0.0083" |
0.152 |
.0059 |
65 Mesh |
| 180 µm |
No. 80 |
0.180 |
0.0070" |
0.131 |
.0051 |
80 Mesh |
| 150 µm |
No. 100 |
0.150 |
0.0059" |
0.110 |
.0043 |
100 Mesh |
| 125 µm |
No. 120 |
0.125 |
0.0049" |
0.091 |
.0035 |
115 Mesh |
| 106 µm |
No. 140 |
0.106 |
0.0041" |
0.076 |
.0029 |
100 Mesh |
| 90 µm |
No. 170 |
0.090 |
0.0035" |
0.064 |
.0025 |
170 Mesh |
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Sieve Designation |
Nominal Sieve Opening |
Nominal Wire Diameter |
Suggested Screen |
Standard |
Alternate |
mm |
inches |
mm |
inches |
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| 75 µm |
No. 200 |
0.075 |
0.0029" |
0.053 |
.0020 |
200 Mesh |
| 63 µm |
No. 230 |
0.063 |
0.0024" |
0.044 |
.0017 |
250 Mesh |
| 53 µm |
No. 270 |
0.053 |
0.0020" |
0.037 |
.0014 |
270 Mesh |
| 45 µm |
No. 325 |
0.045 |
0.0017" |
0.030 |
.0012 |
325 Mesh |
| 38 µm |
No. 400 |
0.038 |
0.0015" |
0.025 |
.0010 |
400 Mesh |
| 32 µm |
No. 450 |
0.032 |
0.0012" |
0.0011 |
.0004 |
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| 25 µm |
No. 500 |
0.025 |
0.00098" |
0.0010 |
.000039 |
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| 20 µm |
No. 635 |
0.020 |
0.00078" |
0.0008 |
.000031 |
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Fine
Mesh Mill Grade Cloth
Market Grade Cloth Space Cloth |
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Reference
Index Main Index Product Specifications Weaves Source |
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