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Grit to Mesh to Microns to Inches Conversion Chart from READE PDF Print E-mail

 

International Sieve Chart / Micropowder Grit Chart:   International Sieve Chart / Micropowder Grit Chart:    International Sieve Chart / Micropowder Grit Chart:  

 

  • 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

 

 

 

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