Steel Beam Sizes / Europe / IPN Sections / IPN 400
IPN 400 Steel Beam Dimensions and Properties
EN IPN taper flange beams · v2026.1
Diagram, properties emphasis, and nearby alternatives use the selected unit system.
Section diagram
IPN 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 | 62.09 lb/ft | 92.40 kg/m |
| Depth, d | 15.75 in | 400.00 mm |
| Flange width, bf | 6.10 in | 155.00 mm |
| tw | 0.567 in | 14.400 mm |
| tf | 0.850 in | 21.600 mm |
| Area | 18.24 in² | 11,770.00 mm² |
| Ix | 701.77 in⁴ | 292,100,000 mm⁴ |
| Iy | 27.87 in⁴ | 11,600,000 mm⁴ |
| Sx | 89.09 in³ | 1,460,000 mm³ |
| Sy | 9.09 in³ | 149,000.00 mm³ |
| Zx | 104.59 in³ | 1,714,000 mm³ |
| Zy | 15.44 in³ | 253,000.00 mm³ |
| rx | 6.18 in | 157.00 mm |
| ry | 1.22 in | 31.00 mm |
| J | 4.08 in⁴ | 1,700,000 mm⁴ |
| Cw | 1,564.04 in⁶ | 420,000,000,000 mm⁶ |
Alternatives
Useful nearby sections
Same-series weight neighbors, closest Ix, and a nearby depth series when available — with percent change versus IPN 400.
Lighter in IPN taper flange beams
IPN 380
- Weight
- 84.0 kg/m (-9.1%)
- Depth
- 380.0 mm (-5.0%)
- Ix
- 240,100,000 mm⁴ (-18%)
Heavier in IPN taper flange beams
IPN 450
- Weight
- 115.0 kg/m (+24%)
- Depth
- 450.0 mm (+13%)
- Ix
- 458,500,000 mm⁴ (+57%)
Closest Iₓ in IPN taper flange beams
IPN 360
- Weight
- 76.1 kg/m (-18%)
- Depth
- 360.0 mm (-10.0%)
- Ix
- 196,100,000 mm⁴ (-33%)
Source: Eurocode 3 UK National Annex and ArcelorMittal Sections 2026-1 · v2026.1 · EN 10365:2017 · Methodology