IR – wide flange (ASTM A6 W)

IR 460x286

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 = 292d = 518tf = 44.5tf = 44.5tw = 24.4tw = 24.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
518mm
Flange widthbf
292mm
Web thicknesstw
24.4mm
Flange thicknesstf
44.5mm
Distance k (design)kdes
54.6mm
Distance k (detailing)kdet
66.7mm
Distance k1k1
33.3mm
Web clear depthT
384mm
Distance between flange centroidsho
475mm

Mass and area

Mass per lengthm
286kg/m
Cross-sectional areaA
36,300mm²

Strong axis x–x

Moment of inertiaIx
1,61010⁶ mm⁴
Elastic section modulusSx
6,23010³ mm³
Plastic section modulusZx
7,24010³ mm³
Radius of gyrationrx
210mm

Weak axis y–y

Moment of inertiaIy
18310⁶ mm⁴
Elastic section modulusSy
1,26010³ mm³
Plastic section modulusZy
1,95010³ mm³
Radius of gyrationry
70.9mm

Torsion and stability

Torsional constantJ
18,60010³ mm⁴
Warping constantCw
10,20010⁹ mm⁶
Effective radius of gyrationrts
83.3mm

Slenderness ratios

Flange slendernessbf/2tf
3.27
Web slendernessh/tw
16.7

Equivalents in other standards