IR – wide flange (ASTM A6 W)

IR 460x464

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 = 305d = 566tf = 69.6tf = 69.6tw = 38.6tw = 38.6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
566mm
Flange widthbf
305mm
Web thicknesstw
38.6mm
Flange thicknesstf
69.6mm
Distance k (design)kdes
82.3mm
Distance k (detailing)kdet
90.5mm
Distance k1k1
39.7mm
Web clear depthT
384mm
Distance between flange centroidsho
498mm

Mass and area

Mass per lengthm
464kg/m
Cross-sectional areaA
59,100mm²

Strong axis x–x

Moment of inertiaIx
2,90010⁶ mm⁴
Elastic section modulusSx
10,20010³ mm³
Plastic section modulusZx
12,40010³ mm³
Radius of gyrationrx
221mm

Weak axis y–y

Moment of inertiaIy
33110⁶ mm⁴
Elastic section modulusSy
2,16010³ mm³
Plastic section modulusZy
3,39010³ mm³
Radius of gyrationry
74.9mm

Torsion and stability

Torsional constantJ
73,30010³ mm⁴
Warping constantCw
20,50010⁹ mm⁶
Effective radius of gyrationrts
89.7mm

Slenderness ratios

Flange slendernessbf/2tf
2.19
Web slendernessh/tw
10.4

Equivalents in other standards