StructureCalcsIPN 100
European Standard I-Beam (IPN) · EN 10365 · Europe
IPN 100 is a European taper-flange I-beam 100.0 mm deep with a 50.0 mm wide flange, weighing 8.3 kg/m. The dimensions below are the published EN 10365 values; the drawing is generated from them.
IPN beams are the classic European taper-flange I — a legacy series still rolled, with the 14% flange taper reproduced in the drawing.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 100.0 mm | 3.94 in |
| Flange width, bf | 50.0 mm | 1.97 in |
| Flange thickness, tf | 6.8 mm | 0.268 in |
| Web thickness, tw | 4.5 mm | 0.177 in |
| Mass per metre | 8.3 kg/m | 5.6 lb/ft |
| Area, A | 1,060 mm² | 1.64 in² |
| Second moment, Ix | 1,710,000 mm⁴ | 4.1 in⁴ |
| Second moment, Iy | 124,000 mm⁴ | 0.3 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 IPN 100 the computed area agrees with the published value to 1.58% and Ix to 1.14%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Wel,x | 34,589 mm³ |
| Elastic modulus, Wel,y | 4,991 mm³ |
| Plastic modulus, Wpl,x | 40,354 mm³ |
| Plastic modulus, Wpl,y | 8,317 mm³ |
| Radius of gyration, rx | 40.1 mm |
| Radius of gyration, ry | 10.8 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