IR – wide flange (ASTM A6 W)

IR 360x122

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 = 363tf = 21.7tf = 21.7tw = 13tw = 13
Cross-section, to scaledimensions in mm

Dimensions

Depthd
363mm
Flange widthbf
257mm
Web thicknesstw
13mm
Flange thicknesstf
21.7mm
Distance k (design)kdes
36.8mm
Distance k (detailing)kdet
42.9mm
Distance k1k1
27mm
Web clear depthT
276mm
Distance between flange centroidsho
340mm

Mass and area

Mass per lengthm
122kg/m
Cross-sectional areaA
15,500mm²

Strong axis x–x

Moment of inertiaIx
36710⁶ mm⁴
Elastic section modulusSx
2,02010³ mm³
Plastic section modulusZx
2,28010³ mm³
Radius of gyrationrx
154mm

Weak axis y–y

Moment of inertiaIy
61.610⁶ mm⁴
Elastic section modulusSy
48010³ mm³
Plastic section modulusZy
73410³ mm³
Radius of gyrationry
63mm

Torsion and stability

Torsional constantJ
2,11010³ mm⁴
Warping constantCw
1,80010⁹ mm⁶
Effective radius of gyrationrts
72.4mm

Slenderness ratios

Flange slendernessbf/2tf
5.92
Web slendernessh/tw
22.4

Equivalents in other standards