IR – wide flange (ASTM A6 W)
IR 920x588
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 975mm
- Flange widthbf
- 427mm
- Web thicknesstw
- 31mm
- Flange thicknesstf
- 55.9mm
- Distance k (design)kdes
- 80mm
- Distance k (detailing)kdet
- 87.3mm
- Distance k1k1
- 46mm
- Web clear depthT
- 797mm
- Distance between flange centroidsho
- 919mm
Mass and area
- Mass per lengthm
- 588kg/m
- Cross-sectional areaA
- 74,800mm²
Strong axis x–x
- Moment of inertiaIx
- 11,90010⁶ mm⁴
- Elastic section modulusSx
- 24,40010³ mm³
- Plastic section modulusZx
- 28,00010³ mm³
- Radius of gyrationrx
- 399mm
Weak axis y–y
- Moment of inertiaIy
- 72810⁶ mm⁴
- Elastic section modulusSy
- 3,41010³ mm³
- Plastic section modulusZy
- 5,33010³ mm³
- Radius of gyrationry
- 98.6mm
Torsion and stability
- Torsional constantJ
- 59,10010³ mm⁴
- Warping constantCw
- 154,00010⁹ mm⁶
- Effective radius of gyrationrts
- 117mm
Slenderness ratios
- Flange slendernessbf/2tf
- 3.83
- Web slendernessh/tw
- 26.3