IR – wide flange (ASTM A6 W)
IR 610x125
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 612mm
- Flange widthbf
- 229mm
- Web thicknesstw
- 11.9mm
- Flange thicknesstf
- 19.6mm
- Distance k (design)kdes
- 32.3mm
- Distance k (detailing)kdet
- 52.4mm
- Distance k1k1
- 36.5mm
- Web clear depthT
- 508mm
- Distance between flange centroidsho
- 592mm
Mass and area
- Mass per lengthm
- 125kg/m
- Cross-sectional areaA
- 15,900mm²
Strong axis x–x
- Moment of inertiaIx
- 98610⁶ mm⁴
- Elastic section modulusSx
- 3,21010³ mm³
- Plastic section modulusZx
- 3,67010³ mm³
- Radius of gyrationrx
- 249mm
Weak axis y–y
- Moment of inertiaIy
- 39.310⁶ mm⁴
- Elastic section modulusSy
- 34210³ mm³
- Plastic section modulusZy
- 53410³ mm³
- Radius of gyrationry
- 49.5mm
Torsion and stability
- Torsional constantJ
- 1,54010³ mm⁴
- Warping constantCw
- 3,44010⁹ mm⁶
- Effective radius of gyrationrts
- 60.2mm
Slenderness ratios
- Flange slendernessbf/2tf
- 5.86
- Web slendernessh/tw
- 45.9