Tolerances - Size: Out of Round/Square
Size Tolerances and Out-of-Round or
Out-of-Square Tolerances
|
Size Tolerance, in. |
|
Specified Sizes, In. |
Over Under |
Out-of-Round
or Out-of-Square, In. |
|
To 5/16 incl.
Over 5/16 to 7/16 incl.
Over 7/16 to 5/8 incl.
Over 5/8 to 7/8 incl. |
.005 .005
.006 .006
.007 .007
.008 .008 |
.008
.009
.010
.012 |
|
Over 7/8 to 1 incl.
Over 1 to 11/8 incl.
Over 11/8 to 1¼ incl.
Over 1¼ to 13/8 incl. |
.009 .009
.010 .010
.011 .011
.012 .012 |
.013
.015
.016
.018 |
|
Over 13/8 to 1½ incl.
Over 1½ to 2 incl.
Over 2 to 2½ incl.
Over 2½ to 3½ incl. |
.014 .014
1/64 - 1/64
1/32 - 0
3/64 - 0 |
.021
.023
.023
.035 |
|
Over 3½ to 41/2 incl.
Over 4½ to 51/2 incl.
Over 5½ to 6½ incl.
Over 6½ to 81/4 incl. |
1/16 - 0
5/64 - 0
1/8 - 0
5/32 - 0 |
.046
.058
.070
.085 |
|
Over 81/4 to 91/2 incl. |
3/16 - 0 |
.100 |
|
Over 9½ to 10 incl. |
1/4 - 0 |
.120 |
Out-of-round is the difference between the maximum and minimum diameters of the bar, measured at the same transverse cross section.
Out-of -square section is the difference in perpendicular distance between opposite faces, measured at the same transverse cross section.
Tolerances shown are based upon ASTM A29.Reference:AISI Steel Products Manual, Alloy, Carbon and HSLA Steels. March, 1986.