Steel Beam Sizes / Australia / Universal Beams / 310 UB 40
310 UB 40 Dimensions, Weight and Section Properties
ASNZS Universal beams · v2019.11
310 UB 40: 303.8 mm depth, 165.1 mm flange width, 40 kg/m weight. View the full dimensions and properties in imperial and metric units below.
Need this steel supplied or fabricated?
Request project pricing for delivery in the United States or Canada.
Get a steel quote →Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
310 UB 40 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 | 26.88 lb/ft | 40.00 kg/m |
| Depth, d | 11.96 in | 303.80 mm |
| Flange width, bf | 6.50 in | 165.10 mm |
| tw | 0.240 in | 6.100 mm |
| tf | 0.402 in | 10.200 mm |
| Area | 7.98 in² | 5,150.00 mm² |
| Ix | 204.69 in⁴ | 85,200,000 mm⁴ |
| Iy | 18.33 in⁴ | 7,630,000 mm⁴ |
| Sx | 34.23 in³ | 560,895.33 mm³ |
| Sy | 5.64 in³ | 92,428.83 mm³ |
| Zx | 38.08 in³ | 624,000.00 mm³ |
| Zy | 8.60 in³ | 141,000.00 mm³ |
| rx | 5.06 in | 128.62 mm |
| ry | 1.52 in | 38.49 mm |
| J | 0.35 in⁴ | 147,000.00 mm⁴ |
| Cw | 610.72 in⁶ | 164,000,006,144 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus 310 UB 40.
Lighter in Universal beams
250 UB 37
- Weight
- 37.0 kg/m (-7.5%)
- Depth
- 256.0 mm (-16%)
- Ix
- 55,600,000 mm⁴ (-35%)
Heavier in Universal beams
360 UB 45
- Weight
- 45.0 kg/m (+13%)
- Depth
- 352.0 mm (+16%)
- Ix
- 121,000,000 mm⁴ (+42%)
Another Iₓ option in Universal beams
310 UB 46
- Weight
- 46.0 kg/m (+15%)
- Depth
- 307.1 mm (+1.1%)
- Ix
- 99,500,000 mm⁴ (+17%)
Source: Australian-Sections.xlsx (Sheets 1-19) · v2019.11 · Methodology