StructureCalcs350WC280
Welded Column · AS/NZS 3679.2 · Australia / New Zealand
350WC280 is a welded column 355.0 mm deep with a 350.0 mm wide flange, weighing 280.3 kg/m. The dimensions below are the published AS/NZS 3679.2 values; the drawing is generated from them.
Welded Columns extend the UC range the same way — three-plate sections for heavy column and transfer applications.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 355.0 mm | 13.98 in |
| Flange width, bf | 350.0 mm | 13.78 in |
| Flange thickness, tf | 40.0 mm | 1.575 in |
| Web thickness, tw | 28.0 mm | 1.102 in |
| Mass per metre | 280.3 kg/m | 188.3 lb/ft |
| Area, A | 35,700 mm² | 55.34 in² |
| Second moment, Ix | 746,834,375 mm⁴ | 1,794.3 in⁴ |
| Second moment, Iy | 286,000,000 mm⁴ | 687.1 in⁴ |
Derived section properties
Integrated from the section's exact plate outline — a welded section has square corners by construction, so nothing is approximated. For 350WC280 the computed area agrees 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, Zx | 4,207,518 mm³ |
| Elastic modulus, Zy | 1,636,208 mm³ |
| Plastic modulus, Sx | 4,939,375 mm³ |
| Plastic modulus, Sy | 2,503,900 mm³ |
| Radius of gyration, rx | 144.6 mm |
| Radius of gyration, ry | 89.6 mm |
Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed.
Neighbouring sizes
Where these numbers come from
Published AS/NZS 3679.2 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API