StructureCalcsHEM 340
European H-Beam (HE M) · EN 10365 · Europe
HEM 340 is a European wide-flange H-section, heavy series 377.0 mm deep with a 309.0 mm wide flange, weighing 247.9 kg/m. The dimensions below are the published EN 10365 values; the drawing is generated from them.
HE M sections are the heavy H series, with thick flanges for high axial loads and stiff connections.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 377.0 mm | 14.84 in |
| Flange width, bf | 309.0 mm | 12.17 in |
| Flange thickness, tf | 40.0 mm | 1.575 in |
| Web thickness, tw | 21.0 mm | 0.827 in |
| Mass per metre | 247.9 kg/m | 166.6 lb/ft |
| Area, A | 31,583 mm² | 48.95 in² |
| Second moment, Ix | 763,716,800 mm⁴ | 1,834.8 in⁴ |
| Second moment, Iy | 197,110,000 mm⁴ | 473.6 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 HEM 340 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 | 4,051,548 mm³ |
| Elastic modulus, Wel,y | 1,275,774 mm³ |
| Plastic modulus, Wpl,x | 4,717,571 mm³ |
| Plastic modulus, Wpl,y | 1,952,709 mm³ |
| Radius of gyration, rx | 155.5 mm |
| Radius of gyration, ry | 79.0 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