StructureCalcsHD 320 x 158
Wide-Flange Column (HD) · EN 10365 · Europe
HD 320 x 158 is a heavy wide-flange column section 330.0 mm deep with a 303.0 mm wide flange, weighing 158.0 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 | 330.0 mm | 12.99 in |
| Flange width, bf | 303.0 mm | 11.93 in |
| Flange thickness, tf | 25.5 mm | 1.004 in |
| Web thickness, tw | 14.5 mm | 0.571 in |
| Mass per metre | 158.0 kg/m | 106.2 lb/ft |
| Area, A | 20,125 mm² | 31.19 in² |
| Second moment, Ix | 396,440,000 mm⁴ | 952.5 in⁴ |
| Second moment, Iy | 118,400,000 mm⁴ | 284.5 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 320 x 158 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 | 2,402,695 mm³ |
| Elastic modulus, Wel,y | 781,679 mm³ |
| Plastic modulus, Wpl,x | 2,718,415 mm³ |
| Plastic modulus, Wpl,y | 1,193,541 mm³ |
| Radius of gyration, rx | 140.4 mm |
| Radius of gyration, ry | 76.7 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