IR – wide flange (ASTM A6 W)
IR 460x60
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 455mm
- Flange widthbf
- 153mm
- Web thicknesstw
- 8mm
- Flange thicknesstf
- 13.3mm
- Distance k (design)kdes
- 23.5mm
- Distance k (detailing)kdet
- 30.2mm
- Distance k1k1
- 20.6mm
- Web clear depthT
- 394mm
- Distance between flange centroidsho
- 442mm
Mass and area
- Mass per lengthm
- 60kg/m
- Cross-sectional areaA
- 7,610mm²
Strong axis x–x
- Moment of inertiaIx
- 25510⁶ mm⁴
- Elastic section modulusSx
- 1,12010³ mm³
- Plastic section modulusZx
- 1,28010³ mm³
- Radius of gyrationrx
- 183mm
Weak axis y–y
- Moment of inertiaIy
- 7.9510⁶ mm⁴
- Elastic section modulusSy
- 10410³ mm³
- Plastic section modulusZy
- 16410³ mm³
- Radius of gyrationry
- 32.3mm
Torsion and stability
- Torsional constantJ
- 33710³ mm⁴
- Warping constantCw
- 38710⁹ mm⁶
- Effective radius of gyrationrts
- 39.6mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.73
- Web slendernessh/tw
- 50.9