IR – wide flange (ASTM A6 W)
IR 460x52
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 450mm
- Flange widthbf
- 152mm
- Web thicknesstw
- 7.62mm
- Flange thicknesstf
- 10.8mm
- Distance k (design)kdes
- 21mm
- Distance k (detailing)kdet
- 28.6mm
- Distance k1k1
- 19.1mm
- Web clear depthT
- 394mm
- Distance between flange centroidsho
- 439mm
Mass and area
- Mass per lengthm
- 52kg/m
- Cross-sectional areaA
- 6,650mm²
Strong axis x–x
- Moment of inertiaIx
- 21210⁶ mm⁴
- Elastic section modulusSx
- 94410³ mm³
- Plastic section modulusZx
- 1,09010³ mm³
- Radius of gyrationrx
- 179mm
Weak axis y–y
- Moment of inertiaIy
- 6.3710⁶ mm⁴
- Elastic section modulusSy
- 83.910³ mm³
- Plastic section modulusZy
- 13210³ mm³
- Radius of gyrationry
- 31mm
Torsion and stability
- Torsional constantJ
- 21110³ mm⁴
- Warping constantCw
- 30610⁹ mm⁶
- Effective radius of gyrationrts
- 38.4mm
Slenderness ratios
- Flange slendernessbf/2tf
- 7.06
- Web slendernessh/tw
- 53.5