StructureCalcs350WC258
Welded Column · AS/NZS 3679.2 · Australia / New Zealand
350WC258 is a welded column 347.0 mm deep with a 350.0 mm wide flange, weighing 258.3 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 | 347.0 mm | 13.66 in |
| Flange width, bf | 350.0 mm | 13.78 in |
| Flange thickness, tf | 36.0 mm | 1.417 in |
| Web thickness, tw | 28.0 mm | 1.102 in |
| Mass per metre | 258.3 kg/m | 173.5 lb/ft |
| Area, A | 32,900 mm² | 51.00 in² |
| Second moment, Ix | 660,589,942 mm⁴ | 1,587.1 in⁴ |
| Second moment, Iy | 258,000,000 mm⁴ | 619.8 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 350WC258 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 | 3,807,435 mm³ |
| Elastic modulus, Zy | 1,472,875 mm³ |
| Plastic modulus, Sx | 4,447,975 mm³ |
| Plastic modulus, Sy | 2,258,900 mm³ |
| Radius of gyration, rx | 141.7 mm |
| Radius of gyration, ry | 88.5 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