Micron Designations and Particle Size Standards

The micron-sized abrasive grains (finer than approximately 40 μm) we handle are products that have been precisely graded using automatic wet classifiers and centrifuges.

Thanks to the consistent grading accuracy achieved in our manufacturing facilities and the D50 values we specify during procurement, we are able to provide products with minimal variation between batches.

Unless otherwise specified, we will deliver products within the specifications listed below. However, we are happy to accommodate requests for specific D50 values, SPAN values, and other specifications to suit your application, so please feel free to consult with us. You may also purchase after reviewing the particle size distribution data.

Micron Designations and Particle Size Standards

Micron-scale particle size designation	D10(min.) (um)	Particle Size D50) Range（um)	D90(max.) (um)
40-60	33.00	46.00 - 50.00	71.00
40-50	27.00	39.00 - 43.00	61.00
30-40	22.50	32.00 - 35.00	49.50
20-30	15.70	22.00 - 25.00	36.00
15-25	11.50	17.50 - 20.00	29.00
10-20	8.40	12.50 - 14.10	21.00
8-16 A	6.70	10.20 - 11.80	17.10
8-16 B	6.30	9.00 - 10.60	15.50
6-12	4.90	7.50 - 8.50	12.90
5-10	3.90	6.30 - 7.10	11.00
4-8	3.40	5.25 - 5.85	8.90
4-6	2.50	4.00 - 4.40	6.50
3-6	2.30	3.65 - 4.00	6.00
3-5	2.00	3.40 - 3.70	5.60
2-4	1.50	2.50 - 3.00	4.80
1-3	1.00	1.80 - 2.10	3.50
1-2	0.68	1.14 - 1.40	2.30
0-2	0.39	0.70 - 0.90	1.65
0-1	0.25	0.45 - 0.57	1.10
0-0.5	0.06	0.18 ‐ 0.23	0.65
0-0.25	0.03	0.10 - 0.15	0.23

About Global Diamond

At Global Diamond, we aim to resolve and address any challenges or issues you may be facing with your current diamond and CBN abrasives from the following three perspectives. We go beyond simply offering catalog selections; through customization, we work closely with you to help you achieve a better final product.

Evaluation and Recommendations for Your Current Abrasive Grains
Compatible with special mesh sizes
Precision coarse-grain cutting

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We also offer contract analysis services

Drawing on the extensive data and proven track record that comes from being a specialized manufacturer that has conducted its own incoming inspections of abrasive grains, we offer contract analysis services for the samples you provide.

View details on contract analysis

Consultations and Inquiries

If you're having trouble selecting the right superabrasive product, please feel free to contact us. We'll help you find the superabrasive product that best suits your needs.

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Micron Designations and Particle Size Standards

Micron Designations and Particle Size Standards

About Global Diamond

We also offer contract analysis services

Consultations and Inquiries

Other Technical Information

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