IR – wide flange (ASTM A6 W)
IR 610x153
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 622mm
- Flange widthbf
- 229mm
- Web thicknesstw
- 14mm
- Flange thicknesstf
- 24.9mm
- Distance k (design)kdes
- 37.6mm
- Distance k (detailing)kdet
- 57.2mm
- Distance k1k1
- 38.1mm
- Web clear depthT
- 508mm
- Distance between flange centroidsho
- 597mm
Mass and area
- Mass per lengthm
- 153kg/m
- Cross-sectional areaA
- 19,500mm²
Strong axis x–x
- Moment of inertiaIx
- 1,25010⁶ mm⁴
- Elastic section modulusSx
- 4,01010³ mm³
- Plastic section modulusZx
- 4,59010³ mm³
- Radius of gyrationrx
- 254mm
Weak axis y–y
- Moment of inertiaIy
- 49.510⁶ mm⁴
- Elastic section modulusSy
- 43410³ mm³
- Plastic section modulusZy
- 68010³ mm³
- Radius of gyrationry
- 50.5mm
Torsion and stability
- Torsional constantJ
- 2,94010³ mm⁴
- Warping constantCw
- 4,46010⁹ mm⁶
- Effective radius of gyrationrts
- 61mm
Slenderness ratios
- Flange slendernessbf/2tf
- 4.59
- Web slendernessh/tw
- 39.2