IR – wide flange (ASTM A6 W)
IR 200x46.1
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 203mm
- Flange widthbf
- 203mm
- Web thicknesstw
- 7.24mm
- Flange thicknesstf
- 11mm
- Distance k (design)kdes
- 21.1mm
- Distance k (detailing)kdet
- 28.6mm
- Distance k1k1
- 19.1mm
- Web clear depthT
- 146mm
- Distance between flange centroidsho
- 192mm
Mass and area
- Mass per lengthm
- 46.1kg/m
- Cross-sectional areaA
- 5,890mm²
Strong axis x–x
- Moment of inertiaIx
- 45.810⁶ mm⁴
- Elastic section modulusSx
- 45110³ mm³
- Plastic section modulusZx
- 49810³ mm³
- Radius of gyrationrx
- 88.1mm
Weak axis y–y
- Moment of inertiaIy
- 15.410⁶ mm⁴
- Elastic section modulusSy
- 15210³ mm³
- Plastic section modulusZy
- 23110³ mm³
- Radius of gyrationry
- 51.3mm
Torsion and stability
- Torsional constantJ
- 22310³ mm⁴
- Warping constantCw
- 14210⁹ mm⁶
- Effective radius of gyrationrts
- 57.4mm
Slenderness ratios
- Flange slendernessbf/2tf
- 9.19
- Web slendernessh/tw
- 22.3