IR – wide flange (ASTM A6 W)
IR 920x345
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 943mm
- Flange widthbf
- 307mm
- Web thicknesstw
- 22.1mm
- Flange thicknesstf
- 39.9mm
- Distance k (design)kdes
- 58.9mm
- Distance k (detailing)kdet
- 71.4mm
- Distance k1k1
- 41.3mm
- Web clear depthT
- 800mm
- Distance between flange centroidsho
- 902mm
Mass and area
- Mass per lengthm
- 345kg/m
- Cross-sectional areaA
- 43,900mm²
Strong axis x–x
- Moment of inertiaIx
- 6,24010⁶ mm⁴
- Elastic section modulusSx
- 13,30010³ mm³
- Plastic section modulusZx
- 15,30010³ mm³
- Radius of gyrationrx
- 376mm
Weak axis y–y
- Moment of inertiaIy
- 19510⁶ mm⁴
- Elastic section modulusSy
- 1,27010³ mm³
- Plastic section modulusZy
- 2,00010³ mm³
- Radius of gyrationry
- 66.5mm
Torsion and stability
- Torsional constantJ
- 16,50010³ mm⁴
- Warping constantCw
- 39,70010⁹ mm⁶
- Effective radius of gyrationrts
- 81.5mm
Slenderness ratios
- Flange slendernessbf/2tf
- 3.86
- Web slendernessh/tw
- 37.3