IR – wide flange (ASTM A6 W)
IR 760x196
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 770mm
- Flange widthbf
- 267mm
- Web thicknesstw
- 15.6mm
- Flange thicknesstf
- 25.4mm
- Distance k (design)kdes
- 41.9mm
- Distance k (detailing)kdet
- 57.2mm
- Distance k1k1
- 38.1mm
- Web clear depthT
- 654mm
- Distance between flange centroidsho
- 744mm
Mass and area
- Mass per lengthm
- 196kg/m
- Cross-sectional areaA
- 25,000mm²
Strong axis x–x
- Moment of inertiaIx
- 2,40010⁶ mm⁴
- Elastic section modulusSx
- 6,23010³ mm³
- Plastic section modulusZx
- 7,16010³ mm³
- Radius of gyrationrx
- 310mm
Weak axis y–y
- Moment of inertiaIy
- 81.610⁶ mm⁴
- Elastic section modulusSy
- 61010³ mm³
- Plastic section modulusZy
- 95710³ mm³
- Radius of gyrationry
- 57.2mm
Torsion and stability
- Torsional constantJ
- 4,05010³ mm⁴
- Warping constantCw
- 11,30010⁹ mm⁶
- Effective radius of gyrationrts
- 69.8mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.27
- Web slendernessh/tw
- 43.9