IR – wide flange (ASTM A6 W)
IR 200x26.6
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 207mm
- Flange widthbf
- 133mm
- Web thicknesstw
- 5.84mm
- Flange thicknesstf
- 8.38mm
- Distance k (design)kdes
- 16mm
- Distance k (detailing)kdet
- 20.6mm
- Distance k1k1
- 14.3mm
- Web clear depthT
- 165mm
- Distance between flange centroidsho
- 198mm
Mass and area
- Mass per lengthm
- 26.6kg/m
- Cross-sectional areaA
- 3,390mm²
Strong axis x–x
- Moment of inertiaIx
- 25.810⁶ mm⁴
- Elastic section modulusSx
- 24910³ mm³
- Plastic section modulusZx
- 27910³ mm³
- Radius of gyrationrx
- 87.1mm
Weak axis y–y
- Moment of inertiaIy
- 3.3210⁶ mm⁴
- Elastic section modulusSy
- 49.810³ mm³
- Plastic section modulusZy
- 76.410³ mm³
- Radius of gyrationry
- 31.2mm
Torsion and stability
- Torsional constantJ
- 71.610³ mm⁴
- Warping constantCw
- 32.810⁹ mm⁶
- Effective radius of gyrationrts
- 36.3mm
Slenderness ratios
- Flange slendernessbf/2tf
- 7.95
- Web slendernessh/tw
- 29.9