W6×9 wide-flange beam
Detailing dimensions and section properties from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.
W6×9 measures 5 7/8 in. deep with a 4 in. flange, on a 3/16 in. web and 3/16 in. flanges.
At 9 lb per foot it is one of the 7 W6 sizes, which run from 8.5 to 25 lb/ft.
For strong-axis bending its section modulus is Sx = 5.56 in³ and its moment of inertia Ix = 16.4 in⁴, with a plastic modulus Zx = 6.23 in³.
Detailing dimensions
| Depth (d) | 5 7/8" |
|---|---|
| Flange width (bf) | 4" |
| Web thickness (tw) | 3/16" |
| Flange thickness (tf) | 3/16" |
| k (detailing) | 11/16" |
| Workable gage (g) | 2 1/4" |
Section properties
| Weight | 9 lb/ft |
|---|---|
| Area (A) | 2.68 in² |
| Ix | 16.4 in⁴ |
| Sx | 5.56 in³ |
| Zx | 6.23 in³ |
| rx | 2.47 in |
| Iy | 2.2 in⁴ |
| Sy | 1.11 in³ |
| Zy | 1.72 in³ |
| ry | 0.905 in |
| J | 0.0405 in⁴ |
Other W6 sizes
Same nominal size, different weight — useful when you are checking a substitution or a lighter section.
Similar weight wide-flange beams
Comparable 9 lb/ft sections in other wide-flange beam sizes.
Compare W6×9 with a nearby size
Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need W6×9 cut, formed, or fabricated? Huntington Steel & Supply Co.
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