Allowable Variations
- Dimensions
- Straightness
ASTM A 29/A 29MPermissible Variations in Cross Section for Hot-Wrought Round, Square, and Round-Cornered Square Bars of Steel |
|||
|---|---|---|---|
| Permissible Variation from Specified Size, in. | |||
| Specified Size, in. | Over |
Under |
Out-of-Round or Out-of-Square. in |
| To 5/16, incl | 0.005 | 0.005 | 0.008 |
| Over 5/16 to 7/16, incl | 0.006 | 0.006 | 0.009 |
| Over 3/16 to 5/8, incl | 0.007 | 0.007 | 0.010 |
| Over 5/8 to 3/8, incl | 0.008 | 0.008 | 0.012 |
| Over 3/8 to 1, incl | 0.009 | 0.009 | 0.013 |
| Over 1 to 11/8, incl | 0.010 | 0.010 | 0.015 |
| Over 1 1/8 to 11/4, incl | 0.011 | 0.011 | 0.016 |
| Over 1 1/4 to 1 3/8, incl | 0.012 | 0.012 | 0.018 |
| Over 1 3/8 to 1 1/2, incl | 0.012 | 0.014 | 0.021 |
| Over 1 1/2 to 2, incl | 1/54 | 1/54 | 0.023 |
| Over 2 to 2 1/2, incl | 1/52 | 1/52 | 0.023 |
| Over 2 1/2 to 3 1/2, incl | 3/54 | 0 | 0.035 |
| Over 3 1/2 to 4 1/2, incl | 1/16 | 0 | 0.046 |
| Over 4 1/2 to 5 1/2, incl | 5/54 | 0 | 0.058 |
| Over 5 1/2 to 6 1/2, incl | 1/8 | 0 | 0.070 |
| Over 6 1/2 to 8 1/4, incl | 5/52 | 0 | 0.085 |
| Over 8 1/4 to 9 1/2, incl | 5/16 | 0 | 0.100 |
| Over 9 1/2 to 10, incl | 1/4 | 0 | 0.120 |