IR – wide flange (ASTM A6 W)

IR 360x44

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 = 171d = 351tf = 9.78tf = 9.78tw = 6.86tw = 6.86
Cross-section, to scaledimensions in mm

Dimensions

Depthd
351mm
Flange widthbf
171mm
Web thicknesstw
6.86mm
Flange thicknesstf
9.78mm
Distance k (design)kdes
19.9mm
Distance k (detailing)kdet
28.6mm
Distance k1k1
19.1mm
Web clear depthT
295mm
Distance between flange centroidsho
340mm

Mass and area

Mass per lengthm
44kg/m
Cross-sectional areaA
5,710mm²

Strong axis x–x

Moment of inertiaIx
12110⁶ mm⁴
Elastic section modulusSx
68810³ mm³
Plastic section modulusZx
77510³ mm³
Radius of gyrationrx
146mm

Weak axis y–y

Moment of inertiaIy
8.1610⁶ mm⁴
Elastic section modulusSy
95.410³ mm³
Plastic section modulusZy
14710³ mm³
Radius of gyrationry
37.8mm

Torsion and stability

Torsional constantJ
15810³ mm⁴
Warping constantCw
23810⁹ mm⁶
Effective radius of gyrationrts
45mm

Slenderness ratios

Flange slendernessbf/2tf
8.74
Web slendernessh/tw
45.4

Equivalents in other standards