StructureCalcs900WB257
Welded Beam · AS/NZS 3679.2 · Australia / New Zealand
900WB257 is a welded beam 916.0 mm deep with a 400.0 mm wide flange, weighing 256.9 kg/m. The dimensions below are the published AS/NZS 3679.2 values; the drawing is generated from them.
Welded Beams are fabricated from three plates to AS/NZS 3679.2, extending the rolled UB range to depths and capacities rolling cannot reach. A welded section has square corners by construction.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 916.0 mm | 36.06 in |
| Flange width, bf | 400.0 mm | 15.75 in |
| Flange thickness, tf | 28.0 mm | 1.102 in |
| Web thickness, tw | 12.0 mm | 0.472 in |
| Mass per metre | 256.9 kg/m | 172.6 lb/ft |
| Area, A | 32,720 mm² | 50.72 in² |
| Second moment, Ix | 5,053,365,867 mm⁴ | 12,140.8 in⁴ |
| Second moment, Iy | 299,000,000 mm⁴ | 718.4 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 900WB257 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 | 11,033,550 mm³ |
| Elastic modulus, Zy | 1,493,953 mm³ |
| Plastic modulus, Sx | 12,164,400 mm³ |
| Plastic modulus, Sy | 2,270,960 mm³ |
| Radius of gyration, rx | 393.0 mm |
| Radius of gyration, ry | 95.6 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