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GALVALUME® Sheet
Tolerances
U. S. Steel GALVALUME® steel sheet is a hot-dip coated product and thus, the tolerances listed below are applicable.
Hot-Dip Coated Sheet
U. S. Steel Hot-Dip Coated Sheet is produced to meet the dimensional tolerances as shown in the following Tables (I-IV). If your application requires improved tolerances for performance reasons, please inquire.
Thickness is measured at any point on the sheet no less than one inch from an edge.
Table I
Nominal Thickness
Hot-Dip Coated Sheet Coils
Tolerances, Over and Under, for Specified Nominal
Thickness |
Specified
Width,
inches |
Over
.101 - .160 |
Over
.075 - .101 |
Over
.061 - .075 |
.061
and
thinner |
|
24 - 40
|
.006
|
.006
|
.003
|
.002
|
|
Over 40 - 60
|
.007
|
.006
|
.003
|
.002
|
|
Over 60 - 72
|
.007
|
.007
|
.003
|
.002
|
Table II
Minimum Thickness
Hot-Dip Coated Sheet Coils
Tolerances Over Specified Minimum Thickness |
Specified
Width,
inches |
Over
.101 - .160 |
Over
.075 - .101 |
Over
.061 - .075 |
.061
and
thinner |
|
24 - 40
|
.012
|
.012
|
.006
|
.004
|
|
Over 40 - 60
|
.014
|
.012
|
.006
|
.004
|
|
Over 60 - 72
|
.014
|
.014
|
.006
|
.004
|
Table III
Width
Hot-Dip Coated Sheet |
| Specified
Width, inches |
Tolerance
Over Specified
Width, Inches* |
|
Coils
|
|
24 - 30
|
1/8
|
|
Over 30 - 48
|
3/16
|
|
Over 48 - 60
|
1/4
|
|
Over 60 - 72
|
5/16
|
*No Tolerance Under
Table IV
Flatness
Hot-Dip Coated Sheet
(Not Specified to Stretcher Leveled Standard of
Flatness - Coils) |
| Specified
Width,
inches |
Specified
Width,
In. |
Flatness
Tolerances*, In.
(Max. Deviation from a
horizontal flat surface). |
|
Nominal
|
Minimum
|
|
.05 & Thinner
|
.048 & Thinner
|
thru 36
|
3/8
|
|
Over 36 - 60
|
5/8
|
|
Over 60 - 72
|
7/8
|
|
Over .05
|
Over .048
|
thru 36
|
1/4
|
|
Over 36 - 60
|
3/8
|
|
Over 60 - 72
|
5/8
|
*Tolerances are subject to inquiry
when the specified yield strength is in excess of 50 ksi or
higher.
Camber Hot-Dip Coated Sheet Coils
Camber is the greatest deviation of a side from a straight line. The measurement is taken on the concave side with a straight edge. The camber tolerance for sheet in coils is 1/2 inch in any 20 feet of length.
|
