IR – wide flange (ASTM A6 W)
IR 150x24
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 160mm
- Flange widthbf
- 102mm
- Web thicknesstw
- 6.6mm
- Flange thicknesstf
- 10.3mm
- Distance k (design)kdes
- 16.6mm
- Distance k (detailing)kdet
- 22.2mm
- Distance k1k1
- 14.3mm
- Web clear depthT
- 114mm
- Distance between flange centroidsho
- 149mm
Mass and area
- Mass per lengthm
- 24kg/m
- Cross-sectional areaA
- 3,060mm²
Strong axis x–x
- Moment of inertiaIx
- 13.410⁶ mm⁴
- Elastic section modulusSx
- 16710³ mm³
- Plastic section modulusZx
- 19210³ mm³
- Radius of gyrationrx
- 66mm
Weak axis y–y
- Moment of inertiaIy
- 1.8410⁶ mm⁴
- Elastic section modulusSy
- 36.110³ mm³
- Plastic section modulusZy
- 55.610³ mm³
- Radius of gyrationry
- 24.6mm
Torsion and stability
- Torsional constantJ
- 92.810³ mm⁴
- Warping constantCw
- 10.310⁹ mm⁶
- Effective radius of gyrationrts
- 28.7mm
Slenderness ratios
- Flange slendernessbf/2tf
- 4.98
- Web slendernessh/tw
- 19.1