IR – wide flange (ASTM A6 W)

IR 460x144

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 = 282d = 472tf = 22.1tf = 22.1tw = 13.6tw = 13.6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
472mm
Flange widthbf
282mm
Web thicknesstw
13.6mm
Flange thicknesstf
22.1mm
Distance k (design)kdes
32.3mm
Distance k (detailing)kdet
44.5mm
Distance k1k1
28.6mm
Web clear depthT
384mm
Distance between flange centroidsho
450mm

Mass and area

Mass per lengthm
144kg/m
Cross-sectional areaA
18,400mm²

Strong axis x–x

Moment of inertiaIx
72810⁶ mm⁴
Elastic section modulusSx
3,08010³ mm³
Plastic section modulusZx
3,46010³ mm³
Radius of gyrationrx
199mm

Weak axis y–y

Moment of inertiaIy
83.710⁶ mm⁴
Elastic section modulusSy
59210³ mm³
Plastic section modulusZy
90610³ mm³
Radius of gyrationry
67.3mm

Torsion and stability

Torsional constantJ
2,44010³ mm⁴
Warping constantCw
4,24010⁹ mm⁶
Effective radius of gyrationrts
78.2mm

Slenderness ratios

Flange slendernessbf/2tf
6.41
Web slendernessh/tw
30

Equivalents in other standards