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Conversion Tables
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Permissible Variations for For Processed Flats
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| Thickness Tolerances Cut From Plate (Shearing) |
| SPECIFIED WIDTH (INCHES) |
OVER |
UNDER |
| 1/8" |
0.010 |
0.010 |
| 3/16, 1/4, 5/16" |
0.050 |
0.010 |
| 3/8, 1/2" |
0.060 |
0.010 |
* Thickness is measured along the longitudinal edges of the plate or plate coils at least 3/8", but not more than 3" from the edge before the bar is cut or slit.
| Length Tolerances Cut From Plate (Shearing) |
| SPECIFIED WIDTH (INCHES) |
For Lengths
Up to 12' Incl. |
For Lengths
Over 12' to 25' Incl. |
| OVER |
UNDER |
OVER |
UNDER |
| To 3.00" Incl. |
1/8" |
0 |
3/16" |
0 |
| Over 3" to 6" Incl. |
3/16" |
0 |
1/4" |
0 |
| Over 6" to 8" Incl. |
1/4" |
0 |
5/16" |
0 |
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| Length Tolerances Cut From Plate (Shearing) |
| SPECIFIED WIDTH (INCHES) |
Thru 4" |
Over 4" |
| OVER |
UNDER |
OVER |
UNDER |
| 1/8" to 1/2" Incl. |
.049" |
.031" |
.094" |
.094" |
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| Straightness Tolerances |
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(Identical with table #11 of ASTM A484) Measurement is taken on the concave side of the bar with a straight edge. Unless otherwise specified, bars are furnished machine straightened to the following tolerances:
Hot Finished
1/8" in any 5', but may not exceed:
1/8" x [(# of feet in length) divided by 5 (expressed in inches)]
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