IR – wide flange (ASTM A6 W)
IR 460x315
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 526mm
- Flange widthbf
- 295mm
- Web thicknesstw
- 26.9mm
- Flange thicknesstf
- 48.5mm
- Distance k (design)kdes
- 58.7mm
- Distance k (detailing)kdet
- 71.4mm
- Distance k1k1
- 34.9mm
- Web clear depthT
- 384mm
- Distance between flange centroidsho
- 478mm
Mass and area
- Mass per lengthm
- 315kg/m
- Cross-sectional areaA
- 40,200mm²
Strong axis x–x
- Moment of inertiaIx
- 1,80010⁶ mm⁴
- Elastic section modulusSx
- 6,87010³ mm³
- Plastic section modulusZx
- 8,03010³ mm³
- Radius of gyrationrx
- 212mm
Weak axis y–y
- Moment of inertiaIy
- 20510⁶ mm⁴
- Elastic section modulusSy
- 1,40010³ mm³
- Plastic section modulusZy
- 2,16010³ mm³
- Radius of gyrationry
- 71.6mm
Torsion and stability
- Torsional constantJ
- 24,40010³ mm⁴
- Warping constantCw
- 11,70010⁹ mm⁶
- Effective radius of gyrationrts
- 84.3mm
Slenderness ratios
- Flange slendernessbf/2tf
- 3.02
- Web slendernessh/tw
- 15.1