UB – universal beams
250UB37.3
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
Dimensions
- Depthd
- 256.2mm
- Flange widthbf
- 146mm
- Web thicknesstw
- 6.4mm
- Flange thicknesstf
- 10.9mm
- Root radiusr
- 8.9mm
Mass and area
- Mass per lengthm
- 37.3kg/m
- Cross-sectional areaA
- 4,751mm²
- Published area (standard)A pub.
- 4,750mm²
- Outside perimeterP
- 1,068mm
Strong axis x–x
- Moment of inertiaIx
- 55.6810⁶ mm⁴
- Elastic section modulusSx
- 434.710³ mm³
- Plastic section modulusZx
- 486.110³ mm³
- Radius of gyrationrx
- 108.3mm
Weak axis y–y
- Moment of inertiaIy
- 5.66110⁶ mm⁴
- Elastic section modulusSy
- 77.5510³ mm³
- Plastic section modulusZy
- 118.910³ mm³
- Radius of gyrationry
- 34.52mm
Torsion and stability
- Torsional constantJ
- 158.110³ mm⁴
- Warping constantCw
- 85.0510⁹ mm⁶