IR – wide flange (ASTM A6 W)
IR 200x41.7
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 205mm
- Flange widthbf
- 166mm
- Web thicknesstw
- 7.24mm
- Flange thicknesstf
- 11.8mm
- Distance k (design)kdes
- 21.8mm
- Distance k (detailing)kdet
- 23.8mm
- Distance k1k1
- 15.9mm
- Web clear depthT
- 156mm
- Distance between flange centroidsho
- 193mm
Mass and area
- Mass per lengthm
- 41.7kg/m
- Cross-sectional areaA
- 5,320mm²
Strong axis x–x
- Moment of inertiaIx
- 40.810⁶ mm⁴
- Elastic section modulusSx
- 39810³ mm³
- Plastic section modulusZx
- 44610³ mm³
- Radius of gyrationrx
- 87.6mm
Weak axis y–y
- Moment of inertiaIy
- 9.0310⁶ mm⁴
- Elastic section modulusSy
- 10910³ mm³
- Plastic section modulusZy
- 16610³ mm³
- Radius of gyrationry
- 41.1mm
Torsion and stability
- Torsional constantJ
- 22410³ mm⁴
- Warping constantCw
- 83.810⁹ mm⁶
- Effective radius of gyrationrts
- 46.7mm
Slenderness ratios
- Flange slendernessbf/2tf
- 7.03
- Web slendernessh/tw
- 22.3