IR – wide flange (ASTM A6 W)
IR 1000x412
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 1,010mm
- Flange widthbf
- 401mm
- Web thicknesstw
- 21.1mm
- Flange thicknesstf
- 40.1mm
- Distance k (design)kdes
- 70.1mm
- Distance k (detailing)kdet
- 73mm
- Distance k1k1
- 41.3mm
- Web clear depthT
- 864mm
- Distance between flange centroidsho
- 968mm
Mass and area
- Mass per lengthm
- 412kg/m
- Cross-sectional areaA
- 52,600mm²
Strong axis x–x
- Moment of inertiaIx
- 9,12010⁶ mm⁴
- Elastic section modulusSx
- 18,00010³ mm³
- Plastic section modulusZx
- 20,50010³ mm³
- Radius of gyrationrx
- 417mm
Weak axis y–y
- Moment of inertiaIy
- 43310⁶ mm⁴
- Elastic section modulusSy
- 2,16010³ mm³
- Plastic section modulusZy
- 3,34010³ mm³
- Radius of gyrationry
- 90.9mm
Torsion and stability
- Torsional constantJ
- 21,40010³ mm⁴
- Warping constantCw
- 102,00010⁹ mm⁶
- Effective radius of gyrationrts
- 108mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.03
- Web slendernessh/tw
- 41.2