Steel Beam Sizes / Europe / UPN Channels / UPN 400
UPN 400 Steel Beam Dimensions and Properties
EN UPN taper flange channels · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
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
Same-series weight neighbors, closest Ix, 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