IR – wide flange (ASTM A6 W)

IR 360x677

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 = 427d = 483tf = 81.5tf = 81.5tw = 51.3tw = 51.3
Cross-section, to scaledimensions in mm

Dimensions

Depthd
483mm
Flange widthbf
427mm
Web thicknesstw
51.3mm
Flange thicknesstf
81.5mm
Distance k (design)kdes
96.8mm
Distance k (detailing)kdet
114mm
Distance k1k1
57.2mm
Web clear depthT
254mm
Distance between flange centroidsho
401mm

Mass and area

Mass per lengthm
677kg/m
Cross-sectional areaA
86,500mm²

Strong axis x–x

Moment of inertiaIx
2,99010⁶ mm⁴
Elastic section modulusSx
12,40010³ mm³
Plastic section modulusZx
15,30010³ mm³
Radius of gyrationrx
186mm

Weak axis y–y

Moment of inertiaIy
1,07010⁶ mm⁴
Elastic section modulusSy
4,98010³ mm³
Plastic section modulusZy
7,67010³ mm³
Radius of gyrationry
111mm

Torsion and stability

Torsional constantJ
164,00010³ mm⁴
Warping constantCw
43,00010⁹ mm⁶
Effective radius of gyrationrts
131mm

Slenderness ratios

Flange slendernessbf/2tf
2.62
Web slendernessh/tw
5.66

Equivalents in other standards