StructureCalcsHD 400 x 677
Wide-Flange Column (HD) · EN 10365 · Europe
HD 400 x 677 is a heavy wide-flange column section 483.0 mm deep with a 428.0 mm wide flange, weighing 677.8 kg/m. The dimensions below are the published EN 10365 values; the drawing is generated from them.
HD sections are heavy wide-flange columns rolled for high-rise and transfer work, extending the HE family upward.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 483.0 mm | 19.02 in |
| Flange width, bf | 428.0 mm | 16.85 in |
| Flange thickness, tf | 81.5 mm | 3.209 in |
| Web thickness, tw | 51.2 mm | 2.016 in |
| Mass per metre | 677.8 kg/m | 455.5 lb/ft |
| Area, A | 86,341 mm² | 133.83 in² |
| Second moment, Ix | 2,994,700,000 mm⁴ | 7,194.8 in⁴ |
| Second moment, Iy | 1,068,800,000 mm⁴ | 2,567.8 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 HD 400 x 677 the computed area agrees with the published value to 0.17% and Ix to 0.12%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Wel,x | 12,415,177 mm³ |
| Elastic modulus, Wel,y | 4,994,697 mm³ |
| Plastic modulus, Wpl,x | 15,369,247 mm³ |
| Plastic modulus, Wpl,y | 7,684,787 mm³ |
| Radius of gyration, rx | 186.2 mm |
| Radius of gyration, ry | 111.2 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