IR – wide flange (ASTM A6 W)

IR 530x409

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 = 328d = 612tf = 55.6tf = 55.6tw = 31tw = 31
Cross-section, to scaledimensions in mm

Dimensions

Depthd
612mm
Flange widthbf
328mm
Web thicknesstw
31mm
Flange thicknesstf
55.6mm
Distance k (design)kdes
85.6mm
Distance k (detailing)kdet
87.3mm
Distance k1k1
46mm
Web clear depthT
438mm
Distance between flange centroidsho
556mm

Mass and area

Mass per lengthm
409kg/m
Cross-sectional areaA
52,800mm²

Strong axis x–x

Moment of inertiaIx
3,20010⁶ mm⁴
Elastic section modulusSx
10,50010³ mm³
Plastic section modulusZx
12,30010³ mm³
Radius of gyrationrx
246mm

Weak axis y–y

Moment of inertiaIy
32810⁶ mm⁴
Elastic section modulusSy
2,00010³ mm³
Plastic section modulusZy
3,13010³ mm³
Radius of gyrationry
78.7mm

Torsion and stability

Torsional constantJ
44,50010³ mm⁴
Warping constantCw
25,40010⁹ mm⁶
Effective radius of gyrationrts
93.5mm

Slenderness ratios

Flange slendernessbf/2tf
2.95
Web slendernessh/tw
14.2

Equivalents in other standards