IR – wide flange (ASTM A6 W)

IR 360x110

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 = 257d = 361tf = 19.9tf = 19.9tw = 11.4tw = 11.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
361mm
Flange widthbf
257mm
Web thicknesstw
11.4mm
Flange thicknesstf
19.9mm
Distance k (design)kdes
35.1mm
Distance k (detailing)kdet
41.3mm
Distance k1k1
27mm
Web clear depthT
276mm
Distance between flange centroidsho
340mm

Mass and area

Mass per lengthm
110kg/m
Cross-sectional areaA
14,100mm²

Strong axis x–x

Moment of inertiaIx
33110⁶ mm⁴
Elastic section modulusSx
1,84010³ mm³
Plastic section modulusZx
2,06010³ mm³
Radius of gyrationrx
153mm

Weak axis y–y

Moment of inertiaIy
55.810⁶ mm⁴
Elastic section modulusSy
43610³ mm³
Plastic section modulusZy
66410³ mm³
Radius of gyrationry
63mm

Torsion and stability

Torsional constantJ
1,61010³ mm⁴
Warping constantCw
1,61010⁹ mm⁶
Effective radius of gyrationrts
71.9mm

Slenderness ratios

Flange slendernessbf/2tf
6.41
Web slendernessh/tw
25.4

Equivalents in other standards