IR – wide flange (ASTM A6 W)
IR 530x332
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 594mm
- Flange widthbf
- 323mm
- Web thicknesstw
- 25.4mm
- Flange thicknesstf
- 45.5mm
- Distance k (design)kdes
- 75.4mm
- Distance k (detailing)kdet
- 77.8mm
- Distance k1k1
- 42.9mm
- Web clear depthT
- 438mm
- Distance between flange centroidsho
- 549mm
Mass and area
- Mass per lengthm
- 332kg/m
- Cross-sectional areaA
- 42,900mm²
Strong axis x–x
- Moment of inertiaIx
- 2,53010⁶ mm⁴
- Elastic section modulusSx
- 8,52010³ mm³
- Plastic section modulusZx
- 9,85010³ mm³
- Radius of gyrationrx
- 243mm
Weak axis y–y
- Moment of inertiaIy
- 25610⁶ mm⁴
- Elastic section modulusSy
- 1,58010³ mm³
- Plastic section modulusZy
- 2,46010³ mm³
- Radius of gyrationry
- 77.2mm
Torsion and stability
- Torsional constantJ
- 24,80010³ mm⁴
- Warping constantCw
- 19,30010⁹ mm⁶
- Effective radius of gyrationrts
- 90.7mm
Slenderness ratios
- Flange slendernessbf/2tf
- 3.55
- Web slendernessh/tw
- 17.5