IR – wide flange (ASTM A6 W)
IR 410x149
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 432mm
- Flange widthbf
- 264mm
- Web thicknesstw
- 14.9mm
- Flange thicknesstf
- 25mm
- Distance k (design)kdes
- 35.3mm
- Distance k (detailing)kdet
- 47.6mm
- Distance k1k1
- 28.6mm
- Web clear depthT
- 337mm
- Distance between flange centroidsho
- 406mm
Mass and area
- Mass per lengthm
- 149kg/m
- Cross-sectional areaA
- 19,000mm²
Strong axis x–x
- Moment of inertiaIx
- 62010⁶ mm⁴
- Elastic section modulusSx
- 2,87010³ mm³
- Plastic section modulusZx
- 3,24010³ mm³
- Radius of gyrationrx
- 180mm
Weak axis y–y
- Moment of inertiaIy
- 77.410⁶ mm⁴
- Elastic section modulusSy
- 58510³ mm³
- Plastic section modulusZy
- 90010³ mm³
- Radius of gyrationry
- 63.8mm
Torsion and stability
- Torsional constantJ
- 3,22010³ mm⁴
- Warping constantCw
- 3,20010⁹ mm⁶
- Effective radius of gyrationrts
- 74.2mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.29
- Web slendernessh/tw
- 24.3