IR – wide flange (ASTM A6 W)

IR 1100x433

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 = 401d = 1,110tf = 40.1tf = 40.1tw = 22tw = 22
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,110mm
Flange widthbf
401mm
Web thicknesstw
22mm
Flange thicknesstf
40.1mm
Distance k (design)kdes
59.9mm
Distance k (detailing)kdet
71.4mm
Distance k1k1
41.3mm
Web clear depthT
965mm
Distance between flange centroidsho
1,070mm

Mass and area

Mass per lengthm
433kg/m
Cross-sectional areaA
55,100mm²

Strong axis x–x

Moment of inertiaIx
11,20010⁶ mm⁴
Elastic section modulusSx
20,30010³ mm³
Plastic section modulusZx
23,10010³ mm³
Radius of gyrationrx
452mm

Weak axis y–y

Moment of inertiaIy
43310⁶ mm⁴
Elastic section modulusSy
2,16010³ mm³
Plastic section modulusZy
3,36010³ mm³
Radius of gyrationry
88.6mm

Torsion and stability

Torsional constantJ
21,20010³ mm⁴
Warping constantCw
124,00010⁹ mm⁶
Effective radius of gyrationrts
107mm

Slenderness ratios

Flange slendernessbf/2tf
5.02
Web slendernessh/tw
45

Equivalents in other standards