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FEPA Particle Sizes

Particle Size Specs

The majority of our products are graded to the FEPA Standard specifications, as provided in the table below.

However, because we sell a large number of types of abrasives, some are by default, graded to ANSI specs.

Therefore, please make sure you specify the gradation you require when placing your order.

Grit size 3% max.,
larger than,
um
50% min.,
in size range,
um
94% min.,
larger than,
um
Grit size 3% max.,
larger than,
um
50% min.,
in size range,
um
94% min.,
larger than,
um
F12 2000 N/A 1400 F120 125 N/A 90
F14 1700 N/A 1180 F150 106 N/A 63
F16 1400 N/A 1000 F180 90 N/A 53
F20 1180 N/A 850 F220 75 50.0-56.0 45
F24 850 N/A 600 F240 70 42.5-46.5 28
F30 710 N/A 500 F280 59 35.0-38.0 22
F36 600 N/A 425 F320 49 27.7-30.7 16.5
F40 500 N/A 355 F360 40 21.3-24.3 12
F46 425 N/A 300 F400 32 16.3-18.3 8
F54 355 N/A 250 F500 25 11.8-13.8 5
F60 300 N/A 212 F600 19 8.3-10.3 3
F70 250 N/A 180 F800 14 5.5-7.5 2
F80 212 N/A 150 F1000 10 3.7-5.3 1
F90 180 N/A 125 F1200 7 2.5-3.5 1
F100 150 N/A 106        


Note: JIS and P Standard graded powder is available on request for fine sizes of black and

green Silicon Carbides, as well as Boron Carbides.