UB – universal beams
310UB40.4
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
Dimensions
- Depthd
- 304mm
- Flange widthbf
- 165mm
- Web thicknesstw
- 6.1mm
- Flange thicknesstf
- 10.2mm
- Root radiusr
- 11.4mm
Mass and area
- Mass per lengthm
- 40.88kg/m
- Cross-sectional areaA
- 5,208mm²
- Published area (standard)A pub.
- 5,210mm²
- Outside perimeterP
- 1,236mm
Strong axis x–x
- Moment of inertiaIx
- 86.4210⁶ mm⁴
- Elastic section modulusSx
- 568.610³ mm³
- Plastic section modulusZx
- 632.710³ mm³
- Radius of gyrationrx
- 128.8mm
Weak axis y–y
- Moment of inertiaIy
- 7.64610⁶ mm⁴
- Elastic section modulusSy
- 92.6810³ mm³
- Plastic section modulusZy
- 142.110³ mm³
- Radius of gyrationry
- 38.32mm
Torsion and stability
- Torsional constantJ
- 156.610³ mm⁴
- Warping constantCw
- 164.810⁹ mm⁶