| T304/304L |
ASTM A276, ASTM A479, QQ-S-763, ASME SA479 |
| T316/316L |
ASTM A276, ASTM A479, QQ-S-763, ASME SA479 |
| Note: Welded Sections do not have specifications |
Tolerance Variation for Hot-Finished Channels
Size Tolerances indicated are over and under |
| |
Depth of Section |
Width of Flanges |
To 3/16 inclusive |
Over 3/16 |
Out of Sq of Either Flange |
| To 1-1/2 inch inclusive |
0.047 |
0.047 |
0.015 |
0.023 |
0.047 |
| Over 1-1/2 inch to 3 inch exclusive |
0.094 |
0.094 |
0.023 |
0.030 |
0.047 |
| Over 3 inch |
0.062 |
0.062 |
|
|
|
|
Note: Not all extruded mills can hold these tolerances (Refer to drawings)
Straightness Tolerance for Machined Straightened Structural
HF: 1/8 inch in any 5 foot; but may not exceed 1/8 x (length in ft/5)
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