Steel Beam Sizes / Europe / UPN Channels / UPN 400
UPN 400 Dimensions, Weight and Section Properties
EN UPN taper flange channels · v2026.1
UPN 400: 400 mm depth, 110 mm flange width, 71.8 kg/m weight. View the full dimensions and properties in imperial and metric units below.
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Section diagram
UPN 400 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 | 48.25 lb/ft | 71.80 kg/m |
| Depth, d | 15.75 in | 400.00 mm |
| Flange width, bf | 4.33 in | 110.00 mm |
| tw | 0.551 in | 14.000 mm |
| tf | 0.709 in | 18.000 mm |
| Area | 14.18 in² | 9,150.00 mm² |
| Ix | 490.11 in⁴ | 204,000,000 mm⁴ |
| Iy | 20.33 in⁴ | 8,460,000 mm⁴ |
| Sx | 62.24 in³ | 1,020,000 mm³ |
| Sy | 6.22 in³ | 102,000.00 mm³ |
| Zx | 75.67 in³ | 1,240,000 mm³ |
| Zy | 11.59 in³ | 190,000.00 mm³ |
| rx | 5.87 in | 149.00 mm |
| ry | 1.20 in | 30.40 mm |
| J | 1.96 in⁴ | 816,000.00 mm⁴ |
| Cw | 822.98 in⁶ | 221,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Compare weight neighbors, another Ix option, and a nearby depth series when available, with percent change versus UPN 400.
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · Eurocode 3 - UK National Annex · Methodology