IR – wide flange (ASTM A6 W)

IR 1000x415

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 = 305d = 1,020tf = 46tf = 46tw = 26.2tw = 26.2
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,020mm
Flange widthbf
305mm
Web thicknesstw
26.2mm
Flange thicknesstf
46mm
Distance k (design)kdes
75.9mm
Distance k (detailing)kdet
77.8mm
Distance k1k1
44.5mm
Web clear depthT
864mm
Distance between flange centroidsho
975mm

Mass and area

Mass per lengthm
415kg/m
Cross-sectional areaA
53,100mm²

Strong axis x–x

Moment of inertiaIx
8,53010⁶ mm⁴
Elastic section modulusSx
16,70010³ mm³
Plastic section modulusZx
19,50010³ mm³
Radius of gyrationrx
401mm

Weak axis y–y

Moment of inertiaIy
21710⁶ mm⁴
Elastic section modulusSy
1,43010³ mm³
Plastic section modulusZy
2,29010³ mm³
Radius of gyrationry
64mm

Torsion and stability

Torsional constantJ
27,10010³ mm⁴
Warping constantCw
51,60010⁹ mm⁶
Effective radius of gyrationrts
79.5mm

Slenderness ratios

Flange slendernessbf/2tf
3.31
Web slendernessh/tw
33.3

Equivalents in other standards