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August 27, 2022

Cold drawn steel bar tolerances

Cold Drawn Steel Bar Tolerances


Cold Drawn Steel bar has more precision diameter tolerances. The tolerance is as blow. If you want more precision diameter tolerances, we can do grinding on steel bar which can reach 0.02mm tolerance, Ra 0.8um max surface roughness and 0.2mm/m straightness.


Diameter

Permitable Tolerance Level

8

9

10

11

12

13

h8

h9

h10

h11

h12

h13

Tolerances

3

0/-0.014

0/-0.025

0/-0.040

0/-0.060

0/-0.15

0/-0.14

>3~6

0/-0.018

0/-0.030

0/-0.048

0/-0.075

0/-0.12

0/-0.18

>6~10

0/-0.022

0/-0.036

0/-0.058

0/-0.090

0/-0.15

0/-0.22

10~18

0/-0.027

0/-0.043

0/-0.070

0/-0.110

0/-0.18

0/-0.27

18~30

0/-0.033

0/-0.052

0/-0.084

0/-0.130

0/-0.2l

0/-0.33

30-50

0/-0.039

0/-0.062

0/-0.100

0/-0.160

0/-0.25

0/-0.39

50~80

0/-0.046

0/-0.074

0/-0.120

0/-0.190

0/-0.30

0/-0.46

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