IR – wide flange (ASTM A6 W)

IR 690x419

Standard: ASTM A6 / IMCASource: SI values from the AISC v16.0 database
IR designation built from the metric W; cross-check with the IMCA Manual.
xybf = 366d = 744tf = 49tf = 49tw = 26.9tw = 26.9
Cross-section, to scaledimensions in mm

Dimensions

Depthd
744mm
Flange widthbf
366mm
Web thicknesstw
26.9mm
Flange thicknesstf
49mm
Distance k (design)kdes
69.1mm
Distance k (detailing)kdet
79.4mm
Distance k1k1
44.5mm
Web clear depthT
584mm
Distance between flange centroidsho
696mm

Mass and area

Mass per lengthm
419kg/m
Cross-sectional areaA
53,600mm²

Strong axis x–x

Moment of inertiaIx
4,95010⁶ mm⁴
Elastic section modulusSx
13,30010³ mm³
Plastic section modulusZx
15,30010³ mm³
Radius of gyrationrx
305mm

Weak axis y–y

Moment of inertiaIy
39710⁶ mm⁴
Elastic section modulusSy
2,18010³ mm³
Plastic section modulusZy
3,38010³ mm³
Radius of gyrationry
86.1mm

Torsion and stability

Torsional constantJ
33,10010³ mm⁴
Warping constantCw
47,80010⁹ mm⁶
Effective radius of gyrationrts
102mm

Slenderness ratios

Flange slendernessbf/2tf
3.72
Web slendernessh/tw
22.5

Equivalents in other standards