IR – wide flange (ASTM A6 W)
IR 360x51
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 356mm
- Flange widthbf
- 171mm
- Web thicknesstw
- 7.24mm
- Flange thicknesstf
- 11.6mm
- Distance k (design)kdes
- 21.7mm
- Distance k (detailing)kdet
- 30.2mm
- Distance k1k1
- 19.1mm
- Web clear depthT
- 295mm
- Distance between flange centroidsho
- 343mm
Mass and area
- Mass per lengthm
- 51kg/m
- Cross-sectional areaA
- 6,450mm²
Strong axis x–x
- Moment of inertiaIx
- 14210⁶ mm⁴
- Elastic section modulusSx
- 79610³ mm³
- Plastic section modulusZx
- 89510³ mm³
- Radius of gyrationrx
- 148mm
Weak axis y–y
- Moment of inertiaIy
- 9.710⁶ mm⁴
- Elastic section modulusSy
- 11310³ mm³
- Plastic section modulusZy
- 17410³ mm³
- Radius of gyrationry
- 38.9mm
Torsion and stability
- Torsional constantJ
- 23710³ mm⁴
- Warping constantCw
- 28710⁹ mm⁶
- Effective radius of gyrationrts
- 45.7mm
Slenderness ratios
- Flange slendernessbf/2tf
- 7.41
- Web slendernessh/tw
- 43.1