Abrasive Grading System
 
USA EUROPEAN "P" GRADE
CAMI FEPA
Micron Avg. Dia. (In.) Mesh Compartible Gift Symbol Mesh Avg. Dia. (In.) Micron Structured Abrasives
.3 .0000118 - - - - - -
.05 .0000197 - - - - - -
1.0 .0000394 - - - - - -
2.0 .0000787 - - - - - -
3.0 .000118 - - - - - -
4.0 .000158 - - - - - -
5.0 .000197 - - - - - A5
6.0 .000236 - - - - - -
6.5 .00026 1200 - - - - -
9.0 .00035 - - - - - -
9.2 .00036 1000 - - - - -
12.0 .00047 - - - - - A6
12.2 .00048 800 - - - - -
15.0 .00059 - - - - - A10
16.0 .00062 600 - P1200 .00060 15.3 -
19.7 .00077 500 - P1000 .00071 18.3 A16
20.0 .00079 - - - - - -
23.6 .00092 400 10/0 P800 .00085 21.8 A30
25.0 .00098 - - - - - -
28.8 .00112 360 - P600 .00100 25.75 A35
30.0 .00118 - - - - - -
- - - - P500 .00118 30.2 -
36.0 .00140 320 9/0 P400 .00137 35.0 A45
40.0 .001575 - - - - - -
- - - - P360 .00158 40.5 -
44.0 .00172 280 8/0 - - - -
45.0 .00177 - - P320 .00180 46.5 -
50.0 .00197 - - - - - -
53.5 .00209 240 7/0 P280 .00204 52.5 -
55.0 .00217 - - - - - -
- - - - P240 .00228 58.5 -
60.0 .0023 - - - - - -
66.0 .00257 220 6/0 P220 .00254 65.0 -
78.0 .00304 180 5/0 P180 .00304 78.0 A100
93.0 .00363 150 4/0 P150 .00378 97.0 A130
116.0 .00452 120 3/0 P120 .00495 127.0 A160
141.0 .00550 100 2/0 - - - -
- - - - P100 .00608 156.0 -
192.0 .00749 80 0 P80 .00768 197.0 -
268.0 .01045 60 1/2 P60 .01014 260.0 -
- - - - P50 .01271 326.0 -
351.0 .01369 50 1 - - - -
428.0 .01669 40 1-1/2 P40 .01601 412.0 -
535.0 .02087 36 2 P36 .02044 524.0 -
638.0 .02488 30 2-1/2 P30 .02426 622.0 -
715.0 .02789 24 3 P24 .02886 740.0 -
905.0 .03530 20 3-1/2 P20 .03838 984.0 -
1320.0 .05148 16 4 P16 .05146 1324.0 -
1842.0 .07184 12 4-1/2 P12 .06880 1764.0 -