IR – wide flange (ASTM A6 W)
IR 760x350
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 795mm
- Flange widthbf
- 384mm
- Web thicknesstw
- 21.1mm
- Flange thicknesstf
- 38.1mm
- Distance k (design)kdes
- 58.2mm
- Distance k (detailing)kdet
- 69.9mm
- Distance k1k1
- 41.3mm
- Web clear depthT
- 654mm
- Distance between flange centroidsho
- 757mm
Mass and area
- Mass per lengthm
- 350kg/m
- Cross-sectional areaA
- 44,700mm²
Strong axis x–x
- Moment of inertiaIx
- 4,87010⁶ mm⁴
- Elastic section modulusSx
- 12,30010³ mm³
- Plastic section modulusZx
- 13,90010³ mm³
- Radius of gyrationrx
- 330mm
Weak axis y–y
- Moment of inertiaIy
- 35610⁶ mm⁴
- Elastic section modulusSy
- 1,87010³ mm³
- Plastic section modulusZy
- 2,87010³ mm³
- Radius of gyrationry
- 89.2mm
Torsion and stability
- Torsional constantJ
- 16,80010³ mm⁴
- Warping constantCw
- 51,00010⁹ mm⁶
- Effective radius of gyrationrts
- 105mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.02
- Web slendernessh/tw
- 32.2