IR – wide flange (ASTM A6 W)

IR 1000x371

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 = 401d = 1,000tf = 36.1tf = 36.1tw = 19.1tw = 19.1
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,000mm
Flange widthbf
401mm
Web thicknesstw
19.1mm
Flange thicknesstf
36.1mm
Distance k (design)kdes
66mm
Distance k (detailing)kdet
68.3mm
Distance k1k1
39.7mm
Web clear depthT
864mm
Distance between flange centroidsho
965mm

Mass and area

Mass per lengthm
371kg/m
Cross-sectional areaA
47,400mm²

Strong axis x–x

Moment of inertiaIx
8,16010⁶ mm⁴
Elastic section modulusSx
16,30010³ mm³
Plastic section modulusZx
18,40010³ mm³
Radius of gyrationrx
414mm

Weak axis y–y

Moment of inertiaIy
38510⁶ mm⁴
Elastic section modulusSy
1,93010³ mm³
Plastic section modulusZy
2,98010³ mm³
Radius of gyrationry
90.2mm

Torsion and stability

Torsional constantJ
15,90010³ mm⁴
Warping constantCw
89,70010⁹ mm⁶
Effective radius of gyrationrts
107mm

Slenderness ratios

Flange slendernessbf/2tf
5.55
Web slendernessh/tw
45.6

Equivalents in other standards