StructureCalcsIPE 400
European I-Beam (IPE) · EN 10365 · Europe
IPE 400 is a European parallel-flange I-beam 400.0 mm deep with a 180.0 mm wide flange, weighing 66.3 kg/m. The dimensions below are the published EN 10365 values; the drawing is generated from them.
IPE sections are the European parallel-flange I-beam series — the standard flexural member of Eurocode practice.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 400.0 mm | 15.75 in |
| Flange width, bf | 180.0 mm | 7.09 in |
| Flange thickness, tf | 13.5 mm | 0.532 in |
| Web thickness, tw | 8.6 mm | 0.339 in |
| Mass per metre | 66.3 kg/m | 44.6 lb/ft |
| Area, A | 8,446 mm² | 13.09 in² |
| Second moment, Ix | 231,277,900 mm⁴ | 555.6 in⁴ |
| Second moment, Iy | 13,200,000 mm⁴ | 31.7 in⁴ |
Derived section properties
Integrated from the section's own outline including the root and toe radii, whose arcs are integrated analytically rather than approximated by facets. For IPE 400 the computed area agrees with the published value to better than 0.01% and Ix to better than 0.01%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Wel,x | 1,156,418 mm³ |
| Elastic modulus, Wel,y | 146,425 mm³ |
| Plastic modulus, Wpl,x | 1,307,148 mm³ |
| Plastic modulus, Wpl,y | 229,000 mm³ |
| Radius of gyration, rx | 165.5 mm |
| Radius of gyration, ry | 39.5 mm |
Wel is the elastic modulus and Wpl the plastic modulus, following Eurocode 3 notation.
Neighbouring sizes
Where these numbers come from
Published EN 10365 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API