“+” before the mesh size indicates the particles are retained on and are larger than the sieve.
“-” before the mesh size indicates the particles pass through and are smaller than the sieve.
For example, if the particle size of a material is described as -10 +400 mesh, then 90% or more of the material will pass through a 10-mesh sieve and be retained by a 400-mesh sieve.
If a material is described as -10 mesh, then 90% or more of the material will pass through a 10-mesh sieve.
|
Mesh Size |
Inches |
Millimeters(mm) |
Microns(μm) |
|
4 |
0.187 |
4.76 |
4760 |
|
5 |
0.157 |
4 |
4000 |
|
6 |
0.132 |
3.36 |
3360 |
|
7 |
0.111 |
2.83 |
2830 |
|
8 |
0.0937 |
2.38 |
2380 |
|
10 |
0.0787 |
2 |
2000 |
|
12 |
0.0661 |
1.68 |
1680 |
|
14 |
0.0555 |
1.41 |
1410 |
|
16 |
0.0469 |
1.19 |
1190 |
|
18 |
0.0394 |
1 |
1000 |
|
20 |
0.0331 |
0.841 |
841 |
|
25 |
0.0278 |
0.707 |
707 |
|
30 |
0.0234 |
0.595 |
595 |
|
35 |
0.0197 |
0.5 |
500 |
|
40 |
0.0165 |
0.42 |
420 |
|
45 |
0.0139 |
0.354 |
354 |
|
50 |
0.0117 |
0.297 |
297 |
|
60 |
0.0098 |
0.25 |
250 |
|
70 |
0.0083 |
0.21 |
210 |
|
80 |
0.007 |
0.177 |
177 |
|
100 |
0.0059 |
0.149 |
149 |
|
120 |
0.0049 |
0.125 |
125 |
|
140 |
0.0041 |
0.105 |
105 |
|
170 |
0.0035 |
0.088 |
88 |
|
200 |
0.0029 |
0.074 |
74 |
|
230 |
0.0025 |
0.063 |
63 |
|
270 |
0.0021 |
0.053 |
53 |
|
325 |
0.0017 |
0.044 |
44 |
|
400 |
0.0015 |
0.037 |
37 |
|
625 |
0.0008 |
0.02 |
20 |
|
1250 |
0.0004 |
0.01 |
10 |
|
2500 |
0.0002 |
0.005 |
5 |
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