Steel Beam Sizes / CISC / W-Shapes / W310×39
W310×39 Dimensions, Weight and Section Properties
CISC Wide flange · v12.1
W310×39: 310 mm depth, 165 mm flange width, 39 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
W310×39 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 | 26.00 lb/ft | 39.00 kg/m |
| Depth, d | 12.20 in | 310.00 mm |
| Flange width, bf | 6.50 in | 165.00 mm |
| tw | 0.228 in | 5.800 mm |
| tf | 0.382 in | 9.700 mm |
| Area | 7.66 in² | 4,940.00 mm² |
| Ix | 204.45 in⁴ | 85,100,000 mm⁴ |
| Iy | 17.47 in⁴ | 7,270,000 mm⁴ |
| Sx | 33.50 in³ | 549,000.00 mm³ |
| Sy | 5.38 in³ | 88,100.00 mm³ |
| Zx | 37.22 in³ | 610,000.00 mm³ |
| Zy | 8.24 in³ | 135,000.00 mm³ |
| rx | 5.16 in | 131.00 mm |
| ry | 1.51 in | 38.40 mm |
| J | 0.30 in⁴ | 126,000.00 mm⁴ |
| Cw | 610.72 in⁶ | 164,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus W310×39.
Lighter in W310
W310×33
- Weight
- 33.0 kg/m (-15%)
- Depth
- 313.0 mm (+1.0%)
- Ix
- 65,000,000 mm⁴ (-24%)
Heavier in W310
W310×45
- Weight
- 45.0 kg/m (+15%)
- Depth
- 313.0 mm (+1.0%)
- Ix
- 99,200,000 mm⁴ (+17%)
Another Iₓ option in W310
W310×28
- Weight
- 28.0 kg/m (-27%)
- Depth
- 309.0 mm (-0.3%)
- Ix
- 54,300,000 mm⁴ (-36%)
Similar weight in W360
W360×39
- Weight
- 39.0 kg/m (0.0%)
- Depth
- 353.0 mm (+14%)
- Ix
- 102,000,000 mm⁴ (+20%)
Source: CISC Structural Section Tables SST12.1 · v12.1 · Availability: Imported; readily available in Canada. · Methodology