IR – wide flange (ASTM A6 W)
IR 460x74
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 457mm
- Flange widthbf
- 191mm
- Web thicknesstw
- 9.02mm
- Flange thicknesstf
- 14.5mm
- Distance k (design)kdes
- 24.7mm
- Distance k (detailing)kdet
- 31.8mm
- Distance k1k1
- 20.6mm
- Web clear depthT
- 394mm
- Distance between flange centroidsho
- 442mm
Mass and area
- Mass per lengthm
- 74kg/m
- Cross-sectional areaA
- 9,480mm²
Strong axis x–x
- Moment of inertiaIx
- 33310⁶ mm⁴
- Elastic section modulusSx
- 1,46010³ mm³
- Plastic section modulusZx
- 1,66010³ mm³
- Radius of gyrationrx
- 187mm
Weak axis y–y
- Moment of inertiaIy
- 16.710⁶ mm⁴
- Elastic section modulusSy
- 17510³ mm³
- Plastic section modulusZy
- 27210³ mm³
- Radius of gyrationry
- 41.9mm
Torsion and stability
- Torsional constantJ
- 51610³ mm⁴
- Warping constantCw
- 81610⁹ mm⁶
- Effective radius of gyrationrts
- 50.3mm
Slenderness ratios
- Flange slendernessbf/2tf
- 6.57
- Web slendernessh/tw
- 45.2