QQ-N-286G TABLE XIII. Permissible variations in weight and thickness of hot rolled
rectangular plate. 1/2/
Specified 3/ Thickness (inches) |
Permissible excess in average weight 4/ per square foot of plate for widths given in inches expressed in percentage of nominal weights |
|||||||||
Under 48 |
48-60 excl. |
60-72 excl |
72-84 excl |
84-96 excl |
96-108 excl |
108-120 excl |
120-132 excl |
132-144 excl |
144-160 excl |
|
3/16 to 5/16, excl |
9.0 |
10.5 |
12.0 |
13.5 |
15.0 |
16.5 |
18.0 |
|||
5/16 to 3/8, excl |
7.5 |
9.0 |
10.5 |
12.0 |
13.5 |
15.0 |
16.5 |
18.0 |
||
3/8 to 7/16, excl |
7.0 |
7.5 |
9.0 |
10.5 |
12.0 |
13.5 |
15.0 |
16.5 |
18.0 |
|
7/16 to �, excl |
6.0 |
7.0 |
7.5 |
9.0 |
10.5 |
12.0 |
13.5 |
15.0 |
16.5 |
18.0 |
� to 5/8, excl |
5.0 |
6.0 |
7.0 |
7.5 |
9.0 |
10.5 |
12.0 |
13.5 |
15.0 |
16.5 |
5/8 to �, excl |
4.5 |
5.5 |
6.0 |
7.0 |
7.5 |
9.0 |
10.5 |
12.0 |
13.5 |
15.0 |
� to 1, excl |
4.0 |
4.5 |
5.5 |
6.0 |
7.0 |
7.5 |
9.0 |
10.5 |
12.0 |
13.5 |
1 to 1�, excl |
4.0 |
4.0 |
4.5 |
5.5 |
6.0 |
7.0 |
7.5 |
9.0 |
10.5 |
12.0 |
1� to 1�, excl |
4.0 |
4.0 |
4.5 |
5.5 |
6.0 |
7.0 |
7.5 |
9.0 |
10.5 |
|
1� to 1�, excl |
4.0 |
4.0 |
4.5 |
5.5 |
6.0 |
7.0 |
7.5 |
9.0 |
||
1� to 2, incl |
4.0 |
4.0 |
4.5 |
5.5 |
6.0 |
7.0 |
7.5 |
|||
1/ The term "lot" applied to the above table means all of the plate of each group width and each group thickness.
2/ No plates shall vary more than 0.01 inch under the thickness ordered, and the overweight of each lot in each shipment shall not exceed the amount shown in the table. Spot grinding will be permitted to remove surface imperfections, such spots not to exceed 0.01 inch under the specified thickness.
3/ All plates shall be ordered by thickness and not weight, per square foot.
4/ The weight of individual plates shall not exceed the nominal weight by more than 1� times the amount shown.
TABLE XIV. Tolerances on width of cold rolled sheet and strip, all conditions.
Ordered thickness (inches) |
Ordered width (inches) |
Tolerances on widths (inches) |
||
Plus |
Minus |
|||
Sheet |
All thickness |
All widths |
0.125 |
0.000 |
Strip, Split edge: |
0.010 to 0.024, incl |
12 and under |
0.007 |
0.007 |
Over 0.024 to 0.075, incl |
12 and under |
0.007 |
0.007 |
|
Over 0.075 to 0.100, incl |
12 and under |
0.009 |
0.009 |
|
Over 0.100 to 0.125, incl |
12 and under |
0.012 |
0.012 |
|
Over 0.125 to 0.250, incl 1/ |
8 and under |
0.015 |
0.015 |
|
Over 0.125 to 0.250, incl 1/ 2/ |
Over 8 to 12, incl |
0.125 |
0. |
|
1/ Available in straightened and cut lengths only.
2/ Slit edge or sheared edge.
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