IR – wide flange (ASTM A6 W)

IR 1000x554

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 = 409d = 1,030tf = 52.1tf = 52.1tw = 29.5tw = 29.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,030mm
Flange widthbf
409mm
Web thicknesstw
29.5mm
Flange thicknesstf
52.1mm
Distance k (design)kdes
82mm
Distance k (detailing)kdet
84.1mm
Distance k1k1
46mm
Web clear depthT
864mm
Distance between flange centroidsho
980mm

Mass and area

Mass per lengthm
554kg/m
Cross-sectional areaA
71,000mm²

Strong axis x–x

Moment of inertiaIx
12,30010⁶ mm⁴
Elastic section modulusSx
23,90010³ mm³
Plastic section modulusZx
27,50010³ mm³
Radius of gyrationrx
419mm

Weak axis y–y

Moment of inertiaIy
59110⁶ mm⁴
Elastic section modulusSy
2,90010³ mm³
Plastic section modulusZy
4,54010³ mm³
Radius of gyrationry
91.4mm

Torsion and stability

Torsional constantJ
48,30010³ mm⁴
Warping constantCw
142,00010⁹ mm⁶
Effective radius of gyrationrts
110mm

Slenderness ratios

Flange slendernessbf/2tf
3.93
Web slendernessh/tw
29.5

Equivalents in other standards