IR – wide flange (ASTM A6 W)
IR 200x22.5
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 206mm
- Flange widthbf
- 102mm
- Web thicknesstw
- 6.22mm
- Flange thicknesstf
- 8mm
- Distance k (design)kdes
- 15.6mm
- Distance k (detailing)kdet
- 20.6mm
- Distance k1k1
- 14.3mm
- Web clear depthT
- 165mm
- Distance between flange centroidsho
- 198mm
Mass and area
- Mass per lengthm
- 22.5kg/m
- Cross-sectional areaA
- 2,860mm²
Strong axis x–x
- Moment of inertiaIx
- 2010⁶ mm⁴
- Elastic section modulusSx
- 19310³ mm³
- Plastic section modulusZx
- 22310³ mm³
- Radius of gyrationrx
- 83.6mm
Weak axis y–y
- Moment of inertiaIy
- 1.4210⁶ mm⁴
- Elastic section modulusSy
- 27.910³ mm³
- Plastic section modulusZy
- 43.810³ mm³
- Radius of gyrationry
- 22.3mm
Torsion and stability
- Torsional constantJ
- 5710³ mm⁴
- Warping constantCw
- 13.910⁹ mm⁶
- Effective radius of gyrationrts
- 26.9mm
Slenderness ratios
- Flange slendernessbf/2tf
- 6.37
- Web slendernessh/tw
- 28.1