IR – wide flange (ASTM A6 W)
IR 530x66
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 526mm
- Flange widthbf
- 165mm
- Web thicknesstw
- 8.89mm
- Flange thicknesstf
- 11.4mm
- Distance k (design)kdes
- 24.1mm
- Distance k (detailing)kdet
- 28.6mm
- Distance k1k1
- 20.6mm
- Web clear depthT
- 467mm
- Distance between flange centroidsho
- 516mm
Mass and area
- Mass per lengthm
- 66kg/m
- Cross-sectional areaA
- 8,390mm²
Strong axis x–x
- Moment of inertiaIx
- 35110⁶ mm⁴
- Elastic section modulusSx
- 1,34010³ mm³
- Plastic section modulusZx
- 1,56010³ mm³
- Radius of gyrationrx
- 205mm
Weak axis y–y
- Moment of inertiaIy
- 8.6210⁶ mm⁴
- Elastic section modulusSy
- 10410³ mm³
- Plastic section modulusZy
- 16710³ mm³
- Radius of gyrationry
- 32mm
Torsion and stability
- Torsional constantJ
- 32010³ mm⁴
- Warping constantCw
- 56710⁹ mm⁶
- Effective radius of gyrationrts
- 40.6mm
Slenderness ratios
- Flange slendernessbf/2tf
- 7.22
- Web slendernessh/tw
- 53.6