IR – wide flange (ASTM A6 W)
IR 360x32.9
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 348mm
- Flange widthbf
- 127mm
- Web thicknesstw
- 5.84mm
- Flange thicknesstf
- 8.51mm
- Distance k (design)kdes
- 18.7mm
- Distance k (detailing)kdet
- 27mm
- Distance k1k1
- 19.1mm
- Web clear depthT
- 295mm
- Distance between flange centroidsho
- 340mm
Mass and area
- Mass per lengthm
- 32.9kg/m
- Cross-sectional areaA
- 4,190mm²
Strong axis x–x
- Moment of inertiaIx
- 82.810⁶ mm⁴
- Elastic section modulusSx
- 47510³ mm³
- Plastic section modulusZx
- 54410³ mm³
- Radius of gyrationrx
- 141mm
Weak axis y–y
- Moment of inertiaIy
- 2.9110⁶ mm⁴
- Elastic section modulusSy
- 45.910³ mm³
- Plastic section modulusZy
- 71.910³ mm³
- Radius of gyrationry
- 26.4mm
Torsion and stability
- Torsional constantJ
- 86.610³ mm⁴
- Warping constantCw
- 84.310⁹ mm⁶
- Effective radius of gyrationrts
- 32.3mm
Slenderness ratios
- Flange slendernessbf/2tf
- 7.46
- Web slendernessh/tw
- 53.3