IR – wide flange (ASTM A6 W)

IR 1000x883

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 = 424d = 1,090tf = 82tf = 82tw = 45.5tw = 45.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
1,090mm
Flange widthbf
424mm
Web thicknesstw
45.5mm
Flange thicknesstf
82mm
Distance k (design)kdes
112mm
Distance k (detailing)kdet
114mm
Distance k1k1
54mm
Web clear depthT
864mm
Distance between flange centroidsho
1,010mm

Mass and area

Mass per lengthm
883kg/m
Cross-sectional areaA
112,000mm²

Strong axis x–x

Moment of inertiaIx
21,00010⁶ mm⁴
Elastic section modulusSx
38,30010³ mm³
Plastic section modulusZx
45,20010³ mm³
Radius of gyrationrx
432mm

Weak axis y–y

Moment of inertiaIy
1,05010⁶ mm⁴
Elastic section modulusSy
4,95010³ mm³
Plastic section modulusZy
7,88010³ mm³
Radius of gyrationry
96.5mm

Torsion and stability

Torsional constantJ
185,00010³ mm⁴
Warping constantCw
268,00010⁹ mm⁶
Effective radius of gyrationrts
118mm

Slenderness ratios

Flange slendernessbf/2tf
2.58
Web slendernessh/tw
19.1

Equivalents in other standards