IR – wide flange (ASTM A6 W)
IR 920x223
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 912mm
- Flange widthbf
- 305mm
- Web thicknesstw
- 15.9mm
- Flange thicknesstf
- 23.9mm
- Distance k (design)kdes
- 42.9mm
- Distance k (detailing)kdet
- 55.6mm
- Distance k1k1
- 38.1mm
- Web clear depthT
- 800mm
- Distance between flange centroidsho
- 889mm
Mass and area
- Mass per lengthm
- 223kg/m
- Cross-sectional areaA
- 28,600mm²
Strong axis x–x
- Moment of inertiaIx
- 3,76010⁶ mm⁴
- Elastic section modulusSx
- 8,26010³ mm³
- Plastic section modulusZx
- 9,52010³ mm³
- Radius of gyrationrx
- 363mm
Weak axis y–y
- Moment of inertiaIy
- 11210⁶ mm⁴
- Elastic section modulusSy
- 73910³ mm³
- Plastic section modulusZy
- 1,16010³ mm³
- Radius of gyrationry
- 62.7mm
Torsion and stability
- Torsional constantJ
- 4,20010³ mm⁴
- Warping constantCw
- 22,10010⁹ mm⁶
- Effective radius of gyrationrts
- 77.7mm
Slenderness ratios
- Flange slendernessbf/2tf
- 6.37
- Web slendernessh/tw
- 51.9