IR – wide flange (ASTM A6 W)

IR 360x1299

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 = 478d = 599tf = 140tf = 140tw = 100tw = 100
Cross-section, to scaledimensions in mm

Dimensions

Depthd
599mm
Flange widthbf
478mm
Web thicknesstw
100mm
Flange thicknesstf
140mm
Distance k (design)kdes
155mm
Distance k (detailing)kdet
157mm
Distance k1k1
65.1mm
Web clear depthT
286mm
Distance between flange centroidsho
460mm

Mass and area

Mass per lengthm
1,300kg/m
Cross-sectional areaA
166,000mm²

Strong axis x–x

Moment of inertiaIx
7,53010⁶ mm⁴
Elastic section modulusSx
25,10010³ mm³
Plastic section modulusZx
33,30010³ mm³
Radius of gyrationrx
213mm

Weak axis y–y

Moment of inertiaIy
2,57010⁶ mm⁴
Elastic section modulusSy
10,80010³ mm³
Plastic section modulusZy
16,70010³ mm³
Radius of gyrationry
124mm

Torsion and stability

Torsional constantJ
945,00010³ mm⁴
Warping constantCw
136,00010⁹ mm⁶
Effective radius of gyrationrts
153mm

Slenderness ratios

Flange slendernessbf/2tf
1.71
Web slendernessh/tw
2.89

Equivalents in other standards