IR – wide flange (ASTM A6 W)

IR 760x161

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 = 267d = 757tf = 19.3tf = 19.3tw = 13.8tw = 13.8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
757mm
Flange widthbf
267mm
Web thicknesstw
13.8mm
Flange thicknesstf
19.3mm
Distance k (design)kdes
35.8mm
Distance k (detailing)kdet
50.8mm
Distance k1k1
38.1mm
Web clear depthT
654mm
Distance between flange centroidsho
737mm

Mass and area

Mass per lengthm
161kg/m
Cross-sectional areaA
20,500mm²

Strong axis x–x

Moment of inertiaIx
1,86010⁶ mm⁴
Elastic section modulusSx
4,90010³ mm³
Plastic section modulusZx
5,67010³ mm³
Radius of gyrationrx
302mm

Weak axis y–y

Moment of inertiaIy
60.810⁶ mm⁴
Elastic section modulusSy
45710³ mm³
Plastic section modulusZy
71910³ mm³
Radius of gyrationry
54.6mm

Torsion and stability

Torsional constantJ
2,08010³ mm⁴
Warping constantCw
8,30010⁹ mm⁶
Effective radius of gyrationrts
67.8mm

Slenderness ratios

Flange slendernessbf/2tf
6.89
Web slendernessh/tw
49.6

Equivalents in other standards