IR – wide flange (ASTM A6 W)

IR 360x134

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 = 368d = 356tf = 18tf = 18tw = 11.2tw = 11.2
Cross-section, to scaledimensions in mm

Dimensions

Depthd
356mm
Flange widthbf
368mm
Web thicknesstw
11.2mm
Flange thicknesstf
18mm
Distance k (design)kdes
33.3mm
Distance k (detailing)kdet
50.8mm
Distance k1k1
36.5mm
Web clear depthT
254mm
Distance between flange centroidsho
338mm

Mass and area

Mass per lengthm
134kg/m
Cross-sectional areaA
17,100mm²

Strong axis x–x

Moment of inertiaIx
41610⁶ mm⁴
Elastic section modulusSx
2,34010³ mm³
Plastic section modulusZx
2,57010³ mm³
Radius of gyrationrx
156mm

Weak axis y–y

Moment of inertiaIy
15110⁶ mm⁴
Elastic section modulusSy
81810³ mm³
Plastic section modulusZy
1,24010³ mm³
Radius of gyrationry
94mm

Torsion and stability

Torsional constantJ
1,69010³ mm⁴
Warping constantCw
4,30010⁹ mm⁶
Effective radius of gyrationrts
104mm

Slenderness ratios

Flange slendernessbf/2tf
10.2
Web slendernessh/tw
25.9

Equivalents in other standards