IR – wide flange (ASTM A6 W)
IR 760x389
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 803mm
- Flange widthbf
- 386mm
- Web thicknesstw
- 23.6mm
- Flange thicknesstf
- 41.9mm
- Distance k (design)kdes
- 62mm
- Distance k (detailing)kdet
- 74.6mm
- Distance k1k1
- 42.9mm
- Web clear depthT
- 654mm
- Distance between flange centroidsho
- 762mm
Mass and area
- Mass per lengthm
- 389kg/m
- Cross-sectional areaA
- 49,700mm²
Strong axis x–x
- Moment of inertiaIx
- 5,45010⁶ mm⁴
- Elastic section modulusSx
- 13,60010³ mm³
- Plastic section modulusZx
- 15,50010³ mm³
- Radius of gyrationrx
- 333mm
Weak axis y–y
- Moment of inertiaIy
- 39910⁶ mm⁴
- Elastic section modulusSy
- 2,08010³ mm³
- Plastic section modulusZy
- 3,21010³ mm³
- Radius of gyrationry
- 89.7mm
Torsion and stability
- Torsional constantJ
- 22,50010³ mm⁴
- Warping constantCw
- 57,70010⁹ mm⁶
- Effective radius of gyrationrts
- 106mm
Slenderness ratios
- Flange slendernessbf/2tf
- 4.59
- Web slendernessh/tw
- 28.7