S18×70 standard beam
S18×70 weighs 70 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) | 18" |
|---|---|
| Flange width (bf) | 6 1/4" |
| Web thickness (tw) | 11/16" |
| Flange thickness (tf) | 11/16" |
| k (detailing) | 1 1/2" |
| Workable gage (g) | 3 1/2" |
Section properties
| Weight | 70 lb/ft |
|---|---|
| Area (A) | 20.5 in² |
| Ix | 923 in⁴ |
| Sx | 103 in³ |
| Zx | 124 in³ |
| rx | 6.7 in |
| Iy | 24 in⁴ |
| Sy | 7.69 in³ |
| Zy | 14.3 in³ |
| ry | 1.08 in |
| J | 4.1 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 S18×70 cut, formed, or fabricated? Huntington Steel & Supply Co.