IR – wide flange (ASTM A6 W)
IR 610x217
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 627mm
- Flange widthbf
- 328mm
- Web thicknesstw
- 16.5mm
- Flange thicknesstf
- 27.7mm
- Distance k (design)kdes
- 40.4mm
- Distance k (detailing)kdet
- 60.3mm
- Distance k1k1
- 39.7mm
- Web clear depthT
- 508mm
- Distance between flange centroidsho
- 599mm
Mass and area
- Mass per lengthm
- 217kg/m
- Cross-sectional areaA
- 27,700mm²
Strong axis x–x
- Moment of inertiaIx
- 1,91010⁶ mm⁴
- Elastic section modulusSx
- 6,08010³ mm³
- Plastic section modulusZx
- 6,85010³ mm³
- Radius of gyrationrx
- 262mm
Weak axis y–y
- Moment of inertiaIy
- 16310⁶ mm⁴
- Elastic section modulusSy
- 99110³ mm³
- Plastic section modulusZy
- 1,53010³ mm³
- Radius of gyrationry
- 76.5mm
Torsion and stability
- Torsional constantJ
- 5,58010³ mm⁴
- Warping constantCw
- 14,70010⁹ mm⁶
- Effective radius of gyrationrts
- 89.7mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.92
- Web slendernessh/tw
- 33.2