ISO 1302 Surface Roughness Cross Reference Archives - Best Fit Precision Parts Co.,LTD

ISO 1302 Surface Roughness Cross Reference

Posted on 07/24/201802/02/2021 by bestfit

Roughness values Ra	Roughness values Ra	Roughness
micrometers	microinches	Grade Numbers
50	2000	N12
25	1000	N11
12.5	500	N10
6.3	250	N9
3.2	125	N8
1.6	63	N7
0.8	32	N6
0.4	16	N5
0.2	8	N4
0.1	4	N3
0.05	2	N2
0.025	1	N1