IR – wide flange (ASTM A6 W)
IR 690x802
IR designation built from the metric W; cross-check with the IMCA Manual.
Dimensions
- Depthd
- 826mm
- Flange widthbf
- 389mm
- Web thicknesstw
- 50mm
- Flange thicknesstf
- 89.9mm
- Distance k (design)kdes
- 110mm
- Distance k (detailing)kdet
- 113mm
- Distance k1k1
- 46mm
- Web clear depthT
- 584mm
- Distance between flange centroidsho
- 737mm
Mass and area
- Mass per lengthm
- 802kg/m
- Cross-sectional areaA
- 103,000mm²
Strong axis x–x
- Moment of inertiaIx
- 10,70010⁶ mm⁴
- Elastic section modulusSx
- 25,70010³ mm³
- Plastic section modulusZx
- 31,00010³ mm³
- Radius of gyrationrx
- 323mm
Weak axis y–y
- Moment of inertiaIy
- 87810⁶ mm⁴
- Elastic section modulusSy
- 4,54010³ mm³
- Plastic section modulusZy
- 7,16010³ mm³
- Radius of gyrationry
- 92.7mm
Torsion and stability
- Torsional constantJ
- 206,00010³ mm⁴
- Warping constantCw
- 119,00010⁹ mm⁶
- Effective radius of gyrationrts
- 112mm
Slenderness ratios
- Flange slendernessbf/2tf
- 2.15
- Web slendernessh/tw
- 12.1