310UB40.4
Universal Beam · AS/NZS 3679.1 · Australia / New Zealand
310UB40.4 is a universal beam 304.0 mm deep with a 165.0 mm flange, weighing 40.9 kg/m. The dimensions below are the published AS/NZS 3679.1 values; the drawing is generated from them.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 304.0 mm | 11.97 in |
| Flange width, bf | 165.0 mm | 6.50 in |
| Flange thickness, tf | 10.2 mm | 0.402 in |
| Web thickness, tw | 6.1 mm | 0.240 in |
| Mass per metre | 40.9 kg/m | 27.5 lb/ft |
| Area, A | 5,208 mm² | 8.07 in² |
| Second moment, Ix | 86,586,997 mm⁴ | 208.0 in⁴ |
| Second moment, Iy | 7,641,200 mm⁴ | 18.4 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 310UB40.4 the computed area agrees with the published value to better than 0.01% and Ix to 0.19%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 568,585 mm³ |
| Elastic modulus, Zy | 92,679 mm³ |
| Plastic modulus, Sx | 632,655 mm³ |
| Plastic modulus, Sy | 142,110 mm³ |
| Radius of gyration, rx | 128.8 mm |
| Radius of gyration, ry | 38.3 mm |
Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed — S is elastic and Z is plastic.
Neighbouring sizes
Where these numbers come from
Published AS/NZS 3679.1 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API