IR – wide flange (ASTM A6 W)
IR 1000x296
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 983mm
- Flange widthbf
- 401mm
- Web thicknesstw
- 16.5mm
- Flange thicknesstf
- 27.2mm
- Distance k (design)kdes
- 57.2mm
- Distance k (detailing)kdet
- 58.7mm
- Distance k1k1
- 39.7mm
- Web clear depthT
- 864mm
- Distance between flange centroidsho
- 955mm
Mass and area
- Mass per lengthm
- 296kg/m
- Cross-sectional areaA
- 37,900mm²
Strong axis x–x
- Moment of inertiaIx
- 6,20010⁶ mm⁴
- Elastic section modulusSx
- 12,60010³ mm³
- Plastic section modulusZx
- 14,20010³ mm³
- Radius of gyrationrx
- 406mm
Weak axis y–y
- Moment of inertiaIy
- 28910⁶ mm⁴
- Elastic section modulusSy
- 1,45010³ mm³
- Plastic section modulusZy
- 2,25010³ mm³
- Radius of gyrationry
- 87.6mm
Torsion and stability
- Torsional constantJ
- 7,62010³ mm⁴
- Warping constantCw
- 66,10010⁹ mm⁶
- Effective radius of gyrationrts
- 105mm
Slenderness ratios
- Flange slendernessbf/2tf
- 7.39
- Web slendernessh/tw
- 52.6