IR – wide flange (ASTM A6 W)
IR 310x52
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 318mm
- Flange widthbf
- 167mm
- Web thicknesstw
- 7.62mm
- Flange thicknesstf
- 13.2mm
- Distance k (design)kdes
- 20.8mm
- Distance k (detailing)kdet
- 30.2mm
- Distance k1k1
- 19.1mm
- Web clear depthT
- 257mm
- Distance between flange centroidsho
- 305mm
Mass and area
- Mass per lengthm
- 52kg/m
- Cross-sectional areaA
- 6,650mm²
Strong axis x–x
- Moment of inertiaIx
- 11910⁶ mm⁴
- Elastic section modulusSx
- 74710³ mm³
- Plastic section modulusZx
- 83910³ mm³
- Radius of gyrationrx
- 133mm
Weak axis y–y
- Moment of inertiaIy
- 10.210⁶ mm⁴
- Elastic section modulusSy
- 12210³ mm³
- Plastic section modulusZy
- 18810³ mm³
- Radius of gyrationry
- 39.1mm
Torsion and stability
- Torsional constantJ
- 30810³ mm⁴
- Warping constantCw
- 23610⁹ mm⁶
- Effective radius of gyrationrts
- 45.5mm
Slenderness ratios
- Flange slendernessbf/2tf
- 6.31
- Web slendernessh/tw
- 36.2