IR – wide flange (ASTM A6 W)

IR 360x592

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 = 422d = 465tf = 72.4tf = 72.4tw = 45tw = 45
Cross-section, to scaledimensions in mm

Dimensions

Depthd
465mm
Flange widthbf
422mm
Web thicknesstw
45mm
Flange thicknesstf
72.4mm
Distance k (design)kdes
87.4mm
Distance k (detailing)kdet
105mm
Distance k1k1
54mm
Web clear depthT
254mm
Distance between flange centroidsho
394mm

Mass and area

Mass per lengthm
592kg/m
Cross-sectional areaA
75,500mm²

Strong axis x–x

Moment of inertiaIx
2,50010⁶ mm⁴
Elastic section modulusSx
10,70010³ mm³
Plastic section modulusZx
13,10010³ mm³
Radius of gyrationrx
182mm

Weak axis y–y

Moment of inertiaIy
90310⁶ mm⁴
Elastic section modulusSy
4,29010³ mm³
Plastic section modulusZy
6,59010³ mm³
Radius of gyrationry
109mm

Torsion and stability

Torsional constantJ
114,00010³ mm⁴
Warping constantCw
34,60010⁹ mm⁶
Effective radius of gyrationrts
128mm

Slenderness ratios

Flange slendernessbf/2tf
2.92
Web slendernessh/tw
6.44

Equivalents in other standards