StructureCalcs400WC212
Welded Column · AS/NZS 3679.2 · Australia / New Zealand
400WC212 is a welded column 400.0 mm deep with a 400.0 mm wide flange, weighing 212.0 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 | 400.0 mm | 15.75 in |
| Flange width, bf | 400.0 mm | 15.75 in |
| Flange thickness, tf | 25.0 mm | 0.984 in |
| Web thickness, tw | 20.0 mm | 0.787 in |
| Mass per metre | 212.0 kg/m | 142.4 lb/ft |
| Area, A | 27,000 mm² | 41.85 in² |
| Second moment, Ix | 775,625,000 mm⁴ | 1,863.4 in⁴ |
| Second moment, Iy | 267,000,000 mm⁴ | 641.5 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 400WC212 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 | 3,878,125 mm³ |
| Elastic modulus, Zy | 1,334,500 mm³ |
| Plastic modulus, Sx | 4,362,500 mm³ |
| Plastic modulus, Sy | 2,035,000 mm³ |
| Radius of gyration, rx | 169.5 mm |
| Radius of gyration, ry | 99.4 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