IR – wide flange (ASTM A6 W)
IR 760x531
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 833mm
- Flange widthbf
- 394mm
- Web thicknesstw
- 31.5mm
- Flange thicknesstf
- 56.9mm
- Distance k (design)kdes
- 77mm
- Distance k (detailing)kdet
- 88.9mm
- Distance k1k1
- 46mm
- Web clear depthT
- 654mm
- Distance between flange centroidsho
- 777mm
Mass and area
- Mass per lengthm
- 531kg/m
- Cross-sectional areaA
- 67,700mm²
Strong axis x–x
- Moment of inertiaIx
- 7,78010⁶ mm⁴
- Elastic section modulusSx
- 18,70010³ mm³
- Plastic section modulusZx
- 21,60010³ mm³
- Radius of gyrationrx
- 338mm
Weak axis y–y
- Moment of inertiaIy
- 57910⁶ mm⁴
- Elastic section modulusSy
- 2,93010³ mm³
- Plastic section modulusZy
- 4,57010³ mm³
- Radius of gyrationry
- 92.5mm
Torsion and stability
- Torsional constantJ
- 55,80010³ mm⁴
- Warping constantCw
- 87,00010⁹ mm⁶
- Effective radius of gyrationrts
- 109mm
Slenderness ratios
- Flange slendernessbf/2tf
- 3.45
- Web slendernessh/tw
- 21.6