IR – wide flange (ASTM A6 W)
IR 100x19.3
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 106mm
- Flange widthbf
- 103mm
- Web thicknesstw
- 7.11mm
- Flange thicknesstf
- 8.76mm
- Distance k (design)kdes
- 15.1mm
- Distance k (detailing)kdet
- 19.1mm
- Distance k1k1
- 12.7mm
- Web clear depthT
- 66.7mm
- Distance between flange centroidsho
- 97mm
Mass and area
- Mass per lengthm
- 19.3kg/m
- Cross-sectional areaA
- 2,470mm²
Strong axis x–x
- Moment of inertiaIx
- 4.710⁶ mm⁴
- Elastic section modulusSx
- 89.510³ mm³
- Plastic section modulusZx
- 10310³ mm³
- Radius of gyrationrx
- 43.7mm
Weak axis y–y
- Moment of inertiaIy
- 1.6110⁶ mm⁴
- Elastic section modulusSy
- 31.110³ mm³
- Plastic section modulusZy
- 47.910³ mm³
- Radius of gyrationry
- 25.4mm
Torsion and stability
- Torsional constantJ
- 62.910³ mm⁴
- Warping constantCw
- 3.7610⁹ mm⁶
- Effective radius of gyrationrts
- 29.5mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.88
- Web slendernessh/tw
- 10.6