Steel Beam Sizes / CISC / W-Shapes / W310×118
W310×118 Steel Beam Dimensions and Properties
CISC Wide flange · v12.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
W310×118 dimensions
Not to scale. Dimensions shown for reference.
Section properties
Symbols match the steel section finder. Imperial and metric values are shown side by side.
| Property | Imperial | Metric |
|---|---|---|
| Weight | 79.00 lb/ft | 118.00 kg/m |
| Depth, d | 12.36 in | 314.00 mm |
| Flange width, bf | 12.09 in | 307.00 mm |
| tw | 0.469 in | 11.900 mm |
| tf | 0.736 in | 18.700 mm |
| Area | 23.25 in² | 15,000.00 mm² |
| Ix | 660.69 in⁴ | 275,000,000 mm⁴ |
| Iy | 216.71 in⁴ | 90,200,000 mm⁴ |
| Sx | 106.79 in³ | 1,750,000 mm³ |
| Sy | 35.88 in³ | 588,000.00 mm³ |
| Zx | 119.00 in³ | 1,950,000 mm³ |
| Zy | 54.49 in³ | 893,000.00 mm³ |
| rx | 5.35 in | 136.00 mm |
| ry | 3.06 in | 77.60 mm |
| J | 3.84 in⁴ | 1,600,000 mm⁴ |
| Cw | 7,336.08 in⁶ | 1,970,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus W310×118.
Lighter in W310
W310×107
- Weight
- 107.0 kg/m (-8.9%)
- Depth
- 311.0 mm (-1.0%)
- Ix
- 248,000,000 mm⁴ (-9.8%)
Heavier in W310
W310×129
- Weight
- 129.0 kg/m (+10%)
- Depth
- 318.0 mm (+1.3%)
- Ix
- 308,000,000 mm⁴ (+12%)
Closest Iₓ in W310
W310×97
- Weight
- 97.0 kg/m (-18%)
- Depth
- 308.0 mm (-1.9%)
- Ix
- 222,000,000 mm⁴ (-19%)
Similar weight in W250
W250×115
- Weight
- 115.0 kg/m (-2.5%)
- Depth
- 269.0 mm (-14%)
- Ix
- 189,000,000 mm⁴ (-31%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Imported; readily available in Canada. · Methodology