IR – wide flange (ASTM A6 W)
IR 150x37.1
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 162mm
- Flange widthbf
- 154mm
- Web thicknesstw
- 8.13mm
- Flange thicknesstf
- 11.6mm
- Distance k (design)kdes
- 17.9mm
- Distance k (detailing)kdet
- 23.8mm
- Distance k1k1
- 14.3mm
- Web clear depthT
- 114mm
- Distance between flange centroidsho
- 151mm
Mass and area
- Mass per lengthm
- 37.1kg/m
- Cross-sectional areaA
- 4,740mm²
Strong axis x–x
- Moment of inertiaIx
- 22.210⁶ mm⁴
- Elastic section modulusSx
- 27410³ mm³
- Plastic section modulusZx
- 31010³ mm³
- Radius of gyrationrx
- 68.6mm
Weak axis y–y
- Moment of inertiaIy
- 7.1210⁶ mm⁴
- Elastic section modulusSy
- 91.910³ mm³
- Plastic section modulusZy
- 14010³ mm³
- Radius of gyrationry
- 38.6mm
Torsion and stability
- Torsional constantJ
- 19210³ mm⁴
- Warping constantCw
- 40.310⁹ mm⁶
- Effective radius of gyrationrts
- 44.2mm
Slenderness ratios
- Flange slendernessbf/2tf
- 6.68
- Web slendernessh/tw
- 15.5