UA – unequal-leg angles
75x50x5UA
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
Dimensions
- Depthd
- 75mm
- Widthb
- 50mm
- Thicknesst
- 4.6mm
- Root radiusr1
- 7mm
Mass and area
- Mass per lengthm
- 4.389kg/m
- Cross-sectional areaA
- 559.1mm²
- Published area (standard)A pub.
- 560mm²
- Outside perimeterP
- 244mm
Strong axis x–x
- Moment of inertiaIx
- 0.318910⁶ mm⁴
- Elastic section modulusSx
- 6.22310³ mm³
- Radius of gyrationrx
- 23.88mm
Weak axis y–y
- Moment of inertiaIy
- 0.114210⁶ mm⁴
- Elastic section modulusSy
- 2.96610³ mm³
- Radius of gyrationry
- 14.29mm
Principal axes
- Moment of inertia, major principal axisIu
- 0.367210⁶ mm⁴
- Moment of inertia, minor principal axisIv
- 0.06610⁶ mm⁴
- Radius of gyrationru
- 25.63mm
- Radius of gyration, minor principal axisrv
- 10.87mm
- Principal axis angleα
- 23.59°
Torsion and stability
- Torsional constantJ
- 4.36410³ mm⁴
Centers
- Centroidx̄
- 11.48mm
- Centroidȳ
- 23.75mm