IR – wide flange (ASTM A6 W)
IR 760x484
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 823mm
- Flange widthbf
- 391mm
- Web thicknesstw
- 29mm
- Flange thicknesstf
- 52.1mm
- Distance k (design)kdes
- 72.1mm
- Distance k (detailing)kdet
- 84.1mm
- Distance k1k1
- 44.5mm
- Web clear depthT
- 654mm
- Distance between flange centroidsho
- 772mm
Mass and area
- Mass per lengthm
- 484kg/m
- Cross-sectional areaA
- 61,900mm²
Strong axis x–x
- Moment of inertiaIx
- 6,99010⁶ mm⁴
- Elastic section modulusSx
- 17,00010³ mm³
- Plastic section modulusZx
- 19,50010³ mm³
- Radius of gyrationrx
- 335mm
Weak axis y–y
- Moment of inertiaIy
- 51610⁶ mm⁴
- Elastic section modulusSy
- 2,65010³ mm³
- Plastic section modulusZy
- 4,13010³ mm³
- Radius of gyrationry
- 91.4mm
Torsion and stability
- Torsional constantJ
- 42,90010³ mm⁴
- Warping constantCw
- 77,10010⁹ mm⁶
- Effective radius of gyrationrts
- 108mm
Slenderness ratios
- Flange slendernessbf/2tf
- 3.75
- Web slendernessh/tw
- 23.4