UB – universal beams
180UB22.2
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
Dimensions
- Depthd
- 179mm
- Flange widthbf
- 90mm
- Web thicknesstw
- 6mm
- Flange thicknesstf
- 10mm
- Root radiusr
- 8.9mm
Mass and area
- Mass per lengthm
- 22.15kg/m
- Cross-sectional areaA
- 2,822mm²
- Published area (standard)A pub.
- 2,820mm²
- Outside perimeterP
- 690.7mm
Strong axis x–x
- Moment of inertiaIx
- 15.2910⁶ mm⁴
- Elastic section modulusSx
- 170.810³ mm³
- Plastic section modulusZx
- 195.310³ mm³
- Radius of gyrationrx
- 73.6mm
Weak axis y–y
- Moment of inertiaIy
- 1.2210⁶ mm⁴
- Elastic section modulusSy
- 27.1110³ mm³
- Plastic section modulusZy
- 42.2710³ mm³
- Radius of gyrationry
- 20.79mm
Torsion and stability
- Torsional constantJ
- 81.8210³ mm⁴
- Warping constantCw
- 8.67510⁹ mm⁶