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- Grit to Mesh to Microns to Inches Conversion Chart:
|
Grit
|
Mesh
|
Microns
|
Inches
|
| |
USS**
|
(Average)
|
(Average)
|
| 4 |
3.5 |
5600~4750 |
0.187 (nom.) |
| 5 |
4 |
4750~4000 |
0.157 |
| 6 |
5 |
4000~3350 |
0.132 |
| 7 |
6 |
3350~2800 |
0.111 |
| 8 |
7 |
2210 |
0.087 (av.) |
| 10 |
8 |
1854 |
0.073 |
| 12 |
10 |
1600 |
0.063 |
| 14 |
12 |
1346 |
0.053 |
| 16 |
14 |
1092 |
0.043 |
| 20 |
16 |
940 |
0.037 |
| 24 |
20 |
686 |
0.027 |
| 30 |
25 |
559 |
0.022 |
| 36 |
30 |
483 |
0.030 |
| 46 |
40 |
356 |
0.014 |
| 54 |
45 |
305 |
0.012 |
| 60 |
50 |
254 |
0.010 |
| 70 |
60 |
203 |
0.008 |
| 80 |
70 |
165 |
0.0065 |
| 90 |
80 |
145 |
0.0057 |
| 100 |
100 |
122 |
0.0048 |
| 120 |
120 |
102 |
0.0040 |
| 150 |
140 |
89 |
0.0035 |
| 180 |
170 |
76 |
0.0030 |
| 220 |
200 |
63 |
0.0025 |
|
Micro Grit*
|
Mesh
|
Microns
|
Inches
|
| 240 |
200 |
50- 53.5 |
0.00200 |
| 280 |
|
40.5- 44.0 |
0.00154 |
| 320 |
|
32.5- 36.0 |
0.00122 |
| 360 |
|
25.8- 28.8 |
|
| 400 |
|
20.6- 23.6 |
0.00087 |
| 500 |
|
16.7- 19.7 |
0.00075 |
| 600 |
|
13.0- 16.0 |
0.00063 |
| 700 |
|
|
0.00055 |
| 800 |
|
9.8- 12.3 |
0.00047 |
| 900 |
|
|
0.00035 |
| 1000 |
|
6.8- 9.3 |
0.00028 |
| 1200 |
|
4.5- 6.5 |
|
| CF1 |
|
48 |
0.00189 |
| F |
|
40 |
0.00160 |
| FF |
|
33 |
0.00130 |
| FFF (Coarse) |
|
25 |
0.00099 |
| FFF |
|
19 |
0.00075 |
| FFFF |
|
11 |
0.00043 |
- Grit to Mesh to Microns to Inches Conversion Chart Comments:
a) On a "best efforts basis", the above conversions are approximate and admit the usual commercial variations
b) *Micro Grit= Abrasive grit sizes in the subsieve size range. Conversion values stated are calculated using ANSI Standard B74.18 (by sedimentation) at the 50% point
c) **USS= United States Standard Sieve
|
