W8×40 wide-flange beam
W8×40 weighs 40 lb per foot. Detailing dimensions and section properties below come from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.
Detailing dimensions
| Depth (d) | 8 1/4" |
|---|---|
| Flange width (bf) | 8 1/8" |
| Web thickness (tw) | 3/8" |
| Flange thickness (tf) | 9/16" |
| k (detailing) | 1 1/4" |
| Workable gage (g) | 5 1/2" |
Section properties
| Weight | 40 lb/ft |
|---|---|
| Area (A) | 11.7 in² |
| Ix | 146 in⁴ |
| Sx | 35.5 in³ |
| Zx | 39.8 in³ |
| rx | 3.53 in |
| Iy | 49.1 in⁴ |
| Sy | 12.2 in³ |
| Zy | 18.5 in³ |
| ry | 2.04 in |
| J | 1.12 in⁴ |
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 W8×40 cut, formed, or fabricated? Huntington Steel & Supply Co.