IR – wide flange (ASTM A6 W)
IR 610x455
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 688mm
- Flange widthbf
- 340mm
- Web thicknesstw
- 32mm
- Flange thicknesstf
- 57.9mm
- Distance k (design)kdes
- 70.6mm
- Distance k (detailing)kdet
- 90.5mm
- Distance k1k1
- 46mm
- Web clear depthT
- 508mm
- Distance between flange centroidsho
- 630mm
Mass and area
- Mass per lengthm
- 455kg/m
- Cross-sectional areaA
- 57,900mm²
Strong axis x–x
- Moment of inertiaIx
- 4,45010⁶ mm⁴
- Elastic section modulusSx
- 12,90010³ mm³
- Plastic section modulusZx
- 15,10010³ mm³
- Radius of gyrationrx
- 277mm
Weak axis y–y
- Moment of inertiaIy
- 38310⁶ mm⁴
- Elastic section modulusSy
- 2,25010³ mm³
- Plastic section modulusZy
- 3,51010³ mm³
- Radius of gyrationry
- 81.3mm
Torsion and stability
- Torsional constantJ
- 48,70010³ mm⁴
- Warping constantCw
- 38,10010⁹ mm⁶
- Effective radius of gyrationrts
- 96.8mm
Slenderness ratios
- Flange slendernessbf/2tf
- 2.94
- Web slendernessh/tw
- 17.1