IR – wide flange (ASTM A6 W)

IR 610x415

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 = 338d = 678tf = 53.1tf = 53.1tw = 29.5tw = 29.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
678mm
Flange widthbf
338mm
Web thicknesstw
29.5mm
Flange thicknesstf
53.1mm
Distance k (design)kdes
65.8mm
Distance k (detailing)kdet
85.7mm
Distance k1k1
46mm
Web clear depthT
508mm
Distance between flange centroidsho
625mm

Mass and area

Mass per lengthm
415kg/m
Cross-sectional areaA
52,800mm²

Strong axis x–x

Moment of inertiaIx
4,00010⁶ mm⁴
Elastic section modulusSx
11,80010³ mm³
Plastic section modulusZx
13,70010³ mm³
Radius of gyrationrx
274mm

Weak axis y–y

Moment of inertiaIy
34310⁶ mm⁴
Elastic section modulusSy
2,03010³ mm³
Plastic section modulusZy
3,16010³ mm³
Radius of gyrationry
80.5mm

Torsion and stability

Torsional constantJ
37,70010³ mm⁴
Warping constantCw
33,60010⁹ mm⁶
Effective radius of gyrationrts
95.5mm

Slenderness ratios

Flange slendernessbf/2tf
3.18
Web slendernessh/tw
18.6

Equivalents in other standards