IR – wide flange (ASTM A6 W)

IR 460x68

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 = 154d = 460tf = 15.4tf = 15.4tw = 9.14tw = 9.14
Cross-section, to scaledimensions in mm

Dimensions

Depthd
460mm
Flange widthbf
154mm
Web thicknesstw
9.14mm
Flange thicknesstf
15.4mm
Distance k (design)kdes
25.7mm
Distance k (detailing)kdet
31.8mm
Distance k1k1
20.6mm
Web clear depthT
394mm
Distance between flange centroidsho
444mm

Mass and area

Mass per lengthm
68kg/m
Cross-sectional areaA
8,710mm²

Strong axis x–x

Moment of inertiaIx
29610⁶ mm⁴
Elastic section modulusSx
1,29010³ mm³
Plastic section modulusZx
1,49010³ mm³
Radius of gyrationrx
184mm

Weak axis y–y

Moment of inertiaIy
9.3710⁶ mm⁴
Elastic section modulusSy
12210³ mm³
Plastic section modulusZy
19210³ mm³
Radius of gyrationry
32.8mm

Torsion and stability

Torsional constantJ
50810³ mm⁴
Warping constantCw
46210⁹ mm⁶
Effective radius of gyrationrts
40.1mm

Slenderness ratios

Flange slendernessbf/2tf
5.01
Web slendernessh/tw
44.6

Equivalents in other standards