IR – wide flange (ASTM A6 W)

IR 840x433

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 = 404d = 884tf = 43.9tf = 43.9tw = 24.4tw = 24.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
884mm
Flange widthbf
404mm
Web thicknesstw
24.4mm
Flange thicknesstf
43.9mm
Distance k (design)kdes
64mm
Distance k (detailing)kdet
74.6mm
Distance k1k1
42.9mm
Web clear depthT
733mm
Distance between flange centroidsho
841mm

Mass and area

Mass per lengthm
433kg/m
Cross-sectional areaA
55,200mm²

Strong axis x–x

Moment of inertiaIx
7,37010⁶ mm⁴
Elastic section modulusSx
16,70010³ mm³
Plastic section modulusZx
19,00010³ mm³
Radius of gyrationrx
366mm

Weak axis y–y

Moment of inertiaIy
48310⁶ mm⁴
Elastic section modulusSy
2,39010³ mm³
Plastic section modulusZy
3,70010³ mm³
Radius of gyrationry
93.5mm

Torsion and stability

Torsional constantJ
27,10010³ mm⁴
Warping constantCw
85,70010⁹ mm⁶
Effective radius of gyrationrts
110mm

Slenderness ratios

Flange slendernessbf/2tf
4.6
Web slendernessh/tw
31

Equivalents in other standards