Steel Beam Sizes / Europe / UPN Channels / UPN 350
UPN 350 Dimensions, Weight and Section Properties
EN UPN taper flange channels · v2026.1
UPN 350: 350 mm depth, 100 mm flange width, 60.6 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
UPN 350 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 | 40.72 lb/ft | 60.60 kg/m |
| Depth, d | 13.78 in | 350.00 mm |
| Flange width, bf | 3.94 in | 100.00 mm |
| tw | 0.551 in | 14.000 mm |
| tf | 0.630 in | 16.000 mm |
| Area | 11.98 in² | 7,730.00 mm² |
| Ix | 307.52 in⁴ | 128,000,000 mm⁴ |
| Iy | 13.69 in⁴ | 5,700,000 mm⁴ |
| Sx | 44.79 in³ | 734,000.00 mm³ |
| Sy | 4.58 in³ | 75,000.00 mm³ |
| Zx | 56.02 in³ | 918,000.00 mm³ |
| Zy | 8.73 in³ | 143,000.00 mm³ |
| rx | 5.08 in | 129.00 mm |
| ry | 1.07 in | 27.20 mm |
| J | 1.47 in⁴ | 612,000.00 mm⁴ |
| Cw | 424.52 in⁶ | 114,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus UPN 350.
Lighter in UPN taper flange channels
UPN 320
- Weight
- 59.5 kg/m (-1.8%)
- Depth
- 320.0 mm (-8.6%)
- Ix
- 109,000,000 mm⁴ (-15%)
Heavier in UPN taper flange channels
UPN 380
- Weight
- 63.1 kg/m (+4.1%)
- Depth
- 380.0 mm (+8.6%)
- Ix
- 158,000,000 mm⁴ (+23%)
Another Iₓ option in UPN taper flange channels
UPN 300
- Weight
- 46.2 kg/m (-24%)
- Depth
- 300.0 mm (-14%)
- Ix
- 80,300,000 mm⁴ (-37%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology