IR – wide flange (ASTM A6 W)
IR 920x576
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 993mm
- Flange widthbf
- 323mm
- Web thicknesstw
- 36.1mm
- Flange thicknesstf
- 65mm
- Distance k (design)kdes
- 84.1mm
- Distance k (detailing)kdet
- 96.8mm
- Distance k1k1
- 49.2mm
- Web clear depthT
- 800mm
- Distance between flange centroidsho
- 927mm
Mass and area
- Mass per lengthm
- 576kg/m
- Cross-sectional areaA
- 73,500mm²
Strong axis x–x
- Moment of inertiaIx
- 11,00010⁶ mm⁴
- Elastic section modulusSx
- 22,30010³ mm³
- Plastic section modulusZx
- 26,40010³ mm³
- Radius of gyrationrx
- 386mm
Weak axis y–y
- Moment of inertiaIy
- 36710⁶ mm⁴
- Elastic section modulusSy
- 2,28010³ mm³
- Plastic section modulusZy
- 3,67010³ mm³
- Radius of gyrationry
- 70.6mm
Torsion and stability
- Torsional constantJ
- 71,60010³ mm⁴
- Warping constantCw
- 78,90010⁹ mm⁶
- Effective radius of gyrationrts
- 87.4mm
Slenderness ratios
- Flange slendernessbf/2tf
- 2.48
- Web slendernessh/tw
- 22.9