IR – wide flange (ASTM A6 W)
IR 760x185
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 767mm
- Flange widthbf
- 267mm
- Web thicknesstw
- 14.9mm
- Flange thicknesstf
- 23.6mm
- Distance k (design)kdes
- 40.1mm
- 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
- 185kg/m
- Cross-sectional areaA
- 23,500mm²
Strong axis x–x
- Moment of inertiaIx
- 2,23010⁶ mm⁴
- Elastic section modulusSx
- 5,82010³ mm³
- Plastic section modulusZx
- 6,69010³ mm³
- Radius of gyrationrx
- 307mm
Weak axis y–y
- Moment of inertiaIy
- 75.310⁶ mm⁴
- Elastic section modulusSy
- 56410³ mm³
- Plastic section modulusZy
- 88510³ mm³
- Radius of gyrationry
- 56.6mm
Torsion and stability
- Torsional constantJ
- 3,33010³ mm⁴
- Warping constantCw
- 10,40010⁹ mm⁶
- Effective radius of gyrationrts
- 69.3mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.65
- Web slendernessh/tw
- 46.2