S8×18.4 standard beam
S8×18.4 weighs 18.4 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" |
|---|---|
| Flange width (bf) | 4" |
| Web thickness (tw) | 1/4" |
| Flange thickness (tf) | 7/16" |
| k (detailing) | 1" |
| Workable gage (g) | 2 1/4" |
Section properties
| Weight | 18.4 lb/ft |
|---|---|
| Area (A) | 5.4 in² |
| Ix | 57.5 in⁴ |
| Sx | 14.4 in³ |
| Zx | 16.5 in³ |
| rx | 3.26 in |
| Iy | 3.69 in⁴ |
| Sy | 1.84 in³ |
| Zy | 3.18 in³ |
| ry | 0.827 in |
| J | 0.335 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 S8×18.4 cut, formed, or fabricated? Huntington Steel & Supply Co.