IR – wide flange (ASTM A6 W)
IR 1000x591
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 1,040mm
- Flange widthbf
- 409mm
- Web thicknesstw
- 31mm
- Flange thicknesstf
- 55.9mm
- Distance k (design)kdes
- 85.9mm
- Distance k (detailing)kdet
- 88.9mm
- Distance k1k1
- 46mm
- Web clear depthT
- 864mm
- Distance between flange centroidsho
- 986mm
Mass and area
- Mass per lengthm
- 591kg/m
- Cross-sectional areaA
- 75,500mm²
Strong axis x–x
- Moment of inertiaIx
- 13,30010⁶ mm⁴
- Elastic section modulusSx
- 25,60010³ mm³
- Plastic section modulusZx
- 29,50010³ mm³
- Radius of gyrationrx
- 422mm
Weak axis y–y
- Moment of inertiaIy
- 64110⁶ mm⁴
- Elastic section modulusSy
- 3,13010³ mm³
- Plastic section modulusZy
- 4,92010³ mm³
- Radius of gyrationry
- 92.5mm
Torsion and stability
- Torsional constantJ
- 59,10010³ mm⁴
- Warping constantCw
- 155,00010⁹ mm⁶
- Effective radius of gyrationrts
- 111mm
Slenderness ratios
- Flange slendernessbf/2tf
- 3.66
- Web slendernessh/tw
- 28