IR – wide flange (ASTM A6 W)
IR 690x265
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 706mm
- Flange widthbf
- 358mm
- Web thicknesstw
- 18.4mm
- Flange thicknesstf
- 30.2mm
- Distance k (design)kdes
- 50.3mm
- Distance k (detailing)kdet
- 60.3mm
- Distance k1k1
- 39.7mm
- Web clear depthT
- 584mm
- Distance between flange centroidsho
- 676mm
Mass and area
- Mass per lengthm
- 265kg/m
- Cross-sectional areaA
- 33,900mm²
Strong axis x–x
- Moment of inertiaIx
- 2,92010⁶ mm⁴
- Elastic section modulusSx
- 8,28010³ mm³
- Plastic section modulusZx
- 9,34010³ mm³
- Radius of gyrationrx
- 295mm
Weak axis y–y
- Moment of inertiaIy
- 23110⁶ mm⁴
- Elastic section modulusSy
- 1,29010³ mm³
- Plastic section modulusZy
- 2,00010³ mm³
- Radius of gyrationry
- 82.6mm
Torsion and stability
- Torsional constantJ
- 8,37010³ mm⁴
- Warping constantCw
- 26,40010⁹ mm⁶
- Effective radius of gyrationrts
- 97.3mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.92
- Web slendernessh/tw
- 32.9