EA – equal-leg angles
90x90x8EA
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
Dimensions
- Depthd
- 90mm
- Widthb
- 90mm
- Thicknesst
- 7.8mm
- Root radiusr1
- 8mm
Mass and area
- Mass per lengthm
- 10.6kg/m
- Cross-sectional areaA
- 1,350mm²
- Published area (standard)A pub.
- 1,350mm²
- Outside perimeterP
- 353.1mm
Strong axis x–x
- Moment of inertiaIx
- 1.03110⁶ mm⁴
- Elastic section modulusSx
- 15.8910³ mm³
- Radius of gyrationrx
- 27.64mm
Weak axis y–y
- Moment of inertiaIy
- 1.03110⁶ mm⁴
- Elastic section modulusSy
- 15.8910³ mm³
- Radius of gyrationry
- 27.64mm
Principal axes
- Moment of inertia, major principal axisIu
- 1.6410⁶ mm⁴
- Moment of inertia, minor principal axisIv
- 0.42310⁶ mm⁴
- Radius of gyrationru
- 34.85mm
- Radius of gyration, minor principal axisrv
- 17.7mm
- Principal axis angleα
- 45°
Torsion and stability
- Torsional constantJ
- 28.9710³ mm⁴
Centers
- Centroidx̄
- 25.11mm
- Centroidȳ
- 25.11mm