IR – wide flange (ASTM A6 W)
IR 690x240
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 701mm
- Flange widthbf
- 356mm
- Web thicknesstw
- 16.8mm
- Flange thicknesstf
- 27.4mm
- Distance k (design)kdes
- 47.5mm
- Distance k (detailing)kdet
- 58.7mm
- Distance k1k1
- 39.7mm
- Web clear depthT
- 584mm
- Distance between flange centroidsho
- 673mm
Mass and area
- Mass per lengthm
- 240kg/m
- Cross-sectional areaA
- 30,700mm²
Strong axis x–x
- Moment of inertiaIx
- 2,63010⁶ mm⁴
- Elastic section modulusSx
- 7,51010³ mm³
- Plastic section modulusZx
- 8,44010³ mm³
- Radius of gyrationrx
- 292mm
Weak axis y–y
- Moment of inertiaIy
- 20710⁶ mm⁴
- Elastic section modulusSy
- 1,16010³ mm³
- Plastic section modulusZy
- 1,79010³ mm³
- Radius of gyrationry
- 82mm
Torsion and stability
- Torsional constantJ
- 6,29010³ mm⁴
- Warping constantCw
- 23,40010⁹ mm⁶
- Effective radius of gyrationrts
- 96.3mm
Slenderness ratios
- Flange slendernessbf/2tf
- 6.49
- Web slendernessh/tw
- 36.1