IR – wide flange (ASTM A6 W)

IR 460x235

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 = 287d = 500tf = 36.6tf = 36.6tw = 20.6tw = 20.6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
500mm
Flange widthbf
287mm
Web thicknesstw
20.6mm
Flange thicknesstf
36.6mm
Distance k (design)kdes
46.7mm
Distance k (detailing)kdet
60.3mm
Distance k1k1
31.8mm
Web clear depthT
384mm
Distance between flange centroidsho
465mm

Mass and area

Mass per lengthm
235kg/m
Cross-sectional areaA
29,900mm²

Strong axis x–x

Moment of inertiaIx
1,27010⁶ mm⁴
Elastic section modulusSx
5,08010³ mm³
Plastic section modulusZx
5,83010³ mm³
Radius of gyrationrx
206mm

Weak axis y–y

Moment of inertiaIy
14410⁶ mm⁴
Elastic section modulusSy
1,01010³ mm³
Plastic section modulusZy
1,55010³ mm³
Radius of gyrationry
69.6mm

Torsion and stability

Torsional constantJ
10,50010³ mm⁴
Warping constantCw
7,79010⁹ mm⁶
Effective radius of gyrationrts
81.3mm

Slenderness ratios

Flange slendernessbf/2tf
3.92
Web slendernessh/tw
19.8

Equivalents in other standards