IR – wide flange (ASTM A6 W)
IR 200x19.3
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 203mm
- Flange widthbf
- 102mm
- Web thicknesstw
- 5.84mm
- Flange thicknesstf
- 6.48mm
- Distance k (design)kdes
- 14.1mm
- Distance k (detailing)kdet
- 19.1mm
- Distance k1k1
- 14.3mm
- Web clear depthT
- 165mm
- Distance between flange centroidsho
- 197mm
Mass and area
- Mass per lengthm
- 19.3kg/m
- Cross-sectional areaA
- 2,480mm²
Strong axis x–x
- Moment of inertiaIx
- 16.510⁶ mm⁴
- Elastic section modulusSx
- 16210³ mm³
- Plastic section modulusZx
- 18710³ mm³
- Radius of gyrationrx
- 81.5mm
Weak axis y–y
- Moment of inertiaIy
- 1.1410⁶ mm⁴
- Elastic section modulusSy
- 22.510³ mm³
- Plastic section modulusZy
- 35.210³ mm³
- Radius of gyrationry
- 21.4mm
Torsion and stability
- Torsional constantJ
- 36.310³ mm⁴
- Warping constantCw
- 1110⁹ mm⁶
- Effective radius of gyrationrts
- 26.2mm
Slenderness ratios
- Flange slendernessbf/2tf
- 7.84
- Web slendernessh/tw
- 29.9