IR – wide flange (ASTM A6 W)
IR 360x744
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 498mm
- Flange widthbf
- 432mm
- Web thicknesstw
- 55.6mm
- Flange thicknesstf
- 88.9mm
- Distance k (design)kdes
- 104mm
- Distance k (detailing)kdet
- 122mm
- Distance k1k1
- 58.7mm
- Web clear depthT
- 254mm
- Distance between flange centroidsho
- 409mm
Mass and area
- Mass per lengthm
- 744kg/m
- Cross-sectional areaA
- 94,800mm²
Strong axis x–x
- Moment of inertiaIx
- 3,42010⁶ mm⁴
- Elastic section modulusSx
- 13,70010³ mm³
- Plastic section modulusZx
- 17,20010³ mm³
- Radius of gyrationrx
- 190mm
Weak axis y–y
- Moment of inertiaIy
- 1,20010⁶ mm⁴
- Elastic section modulusSy
- 5,56010³ mm³
- Plastic section modulusZy
- 8,55010³ mm³
- Radius of gyrationry
- 113mm
Torsion and stability
- Torsional constantJ
- 214,00010³ mm⁴
- Warping constantCw
- 50,20010⁹ mm⁶
- Effective radius of gyrationrts
- 134mm
Slenderness ratios
- Flange slendernessbf/2tf
- 2.43
- Web slendernessh/tw
- 5.21