IR – wide flange (ASTM A6 W)

IR 1000x486

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 = 307d = 1,040tf = 54.1tf = 54.1tw = 30tw = 30
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,040mm
Flange widthbf
307mm
Web thicknesstw
30mm
Flange thicknesstf
54.1mm
Distance k (design)kdes
84.1mm
Distance k (detailing)kdet
85.7mm
Distance k1k1
46mm
Web clear depthT
864mm
Distance between flange centroidsho
983mm

Mass and area

Mass per lengthm
486kg/m
Cross-sectional areaA
61,900mm²

Strong axis x–x

Moment of inertiaIx
10,20010⁶ mm⁴
Elastic section modulusSx
19,70010³ mm³
Plastic section modulusZx
23,10010³ mm³
Radius of gyrationrx
406mm

Weak axis y–y

Moment of inertiaIy
26610⁶ mm⁴
Elastic section modulusSy
1,72010³ mm³
Plastic section modulusZy
2,79010³ mm³
Radius of gyrationry
65.5mm

Torsion and stability

Torsional constantJ
42,90010³ mm⁴
Warping constantCw
64,20010⁹ mm⁶
Effective radius of gyrationrts
81.5mm

Slenderness ratios

Flange slendernessbf/2tf
2.85
Web slendernessh/tw
29

Equivalents in other standards