IR – wide flange (ASTM A6 W)

IR 360x91

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 = 254d = 353tf = 16.4tf = 16.4tw = 9.53tw = 9.53
Cross-section, to scaledimensions in mm

Dimensions

Depthd
353mm
Flange widthbf
254mm
Web thicknesstw
9.53mm
Flange thicknesstf
16.4mm
Distance k (design)kdes
31.5mm
Distance k (detailing)kdet
38.1mm
Distance k1k1
25.4mm
Web clear depthT
276mm
Distance between flange centroidsho
338mm

Mass and area

Mass per lengthm
91kg/m
Cross-sectional areaA
11,500mm²

Strong axis x–x

Moment of inertiaIx
26610⁶ mm⁴
Elastic section modulusSx
1,51010³ mm³
Plastic section modulusZx
1,67010³ mm³
Radius of gyrationrx
152mm

Weak axis y–y

Moment of inertiaIy
44.510⁶ mm⁴
Elastic section modulusSy
35210³ mm³
Plastic section modulusZy
53710³ mm³
Radius of gyrationry
62.2mm

Torsion and stability

Torsional constantJ
91210³ mm⁴
Warping constantCw
1,26010⁹ mm⁶
Effective radius of gyrationrts
70.6mm

Slenderness ratios

Flange slendernessbf/2tf
7.75
Web slendernessh/tw
30.4

Equivalents in other standards