IR – wide flange (ASTM A6 W)

IR 410x46.1

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 = 140d = 404tf = 11.2tf = 11.2tw = 6.99tw = 6.99
Cross-section, to scaledimensions in mm

Dimensions

Depthd
404mm
Flange widthbf
140mm
Web thicknesstw
6.99mm
Flange thicknesstf
11.2mm
Distance k (design)kdes
21.4mm
Distance k (detailing)kdet
28.6mm
Distance k1k1
19.1mm
Web clear depthT
346mm
Distance between flange centroidsho
394mm

Mass and area

Mass per lengthm
46.1kg/m
Cross-sectional areaA
5,890mm²

Strong axis x–x

Moment of inertiaIx
15610⁶ mm⁴
Elastic section modulusSx
77310³ mm³
Plastic section modulusZx
88510³ mm³
Radius of gyrationrx
163mm

Weak axis y–y

Moment of inertiaIy
5.1610⁶ mm⁴
Elastic section modulusSy
73.610³ mm³
Plastic section modulusZy
11510³ mm³
Radius of gyrationry
29.7mm

Torsion and stability

Torsional constantJ
19210³ mm⁴
Warping constantCw
19810⁹ mm⁶
Effective radius of gyrationrts
36.1mm

Slenderness ratios

Flange slendernessbf/2tf
6.28
Web slendernessh/tw
51.6

Equivalents in other standards