IR – wide flange (ASTM A6 W)
IR 1000x272
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 991mm
- Flange widthbf
- 300mm
- Web thicknesstw
- 16.5mm
- Flange thicknesstf
- 30.5mm
- Distance k (design)kdes
- 60.5mm
- Distance k (detailing)kdet
- 63.5mm
- Distance k1k1
- 39.7mm
- Web clear depthT
- 864mm
- Distance between flange centroidsho
- 960mm
Mass and area
- Mass per lengthm
- 272kg/m
- Cross-sectional areaA
- 34,400mm²
Strong axis x–x
- Moment of inertiaIx
- 5,49010⁶ mm⁴
- Elastic section modulusSx
- 11,10010³ mm³
- Plastic section modulusZx
- 12,70010³ mm³
- Radius of gyrationrx
- 399mm
Weak axis y–y
- Moment of inertiaIy
- 13810⁶ mm⁴
- Elastic section modulusSy
- 91810³ mm³
- Plastic section modulusZy
- 1,45010³ mm³
- Radius of gyrationry
- 63.2mm
Torsion and stability
- Torsional constantJ
- 8,03010³ mm⁴
- Warping constantCw
- 31,70010⁹ mm⁶
- Effective radius of gyrationrts
- 77.2mm
Slenderness ratios
- Flange slendernessbf/2tf
- 4.92
- Web slendernessh/tw
- 52.6