IR – wide flange (ASTM A6 W)

IR 310x28.3

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 = 102d = 310tf = 8.89tf = 8.89tw = 5.97tw = 5.97
Cross-section, to scaledimensions in mm

Dimensions

Depthd
310mm
Flange widthbf
102mm
Web thicknesstw
5.97mm
Flange thicknesstf
8.89mm
Distance k (design)kdes
16.5mm
Distance k (detailing)kdet
22.2mm
Distance k1k1
14.3mm
Web clear depthT
264mm
Distance between flange centroidsho
302mm

Mass and area

Mass per lengthm
28.3kg/m
Cross-sectional areaA
3,590mm²

Strong axis x–x

Moment of inertiaIx
54.110⁶ mm⁴
Elastic section modulusSx
34910³ mm³
Plastic section modulusZx
40510³ mm³
Radius of gyrationrx
122mm

Weak axis y–y

Moment of inertiaIy
1.5710⁶ mm⁴
Elastic section modulusSy
30.810³ mm³
Plastic section modulusZy
48.810³ mm³
Radius of gyrationry
20.9mm

Torsion and stability

Torsional constantJ
74.910³ mm⁴
Warping constantCw
35.210⁹ mm⁶
Effective radius of gyrationrts
25.9mm

Slenderness ratios

Flange slendernessbf/2tf
5.72
Web slendernessh/tw
46.2

Equivalents in other standards