IR – wide flange (ASTM A6 W)

IR 460x193

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 = 284d = 490tf = 30.5tf = 30.5tw = 17tw = 17
Cross-section, to scaledimensions in mm

Dimensions

Depthd
490mm
Flange widthbf
284mm
Web thicknesstw
17mm
Flange thicknesstf
30.5mm
Distance k (design)kdes
40.6mm
Distance k (detailing)kdet
52.4mm
Distance k1k1
30.2mm
Web clear depthT
384mm
Distance between flange centroidsho
460mm

Mass and area

Mass per lengthm
193kg/m
Cross-sectional areaA
24,700mm²

Strong axis x–x

Moment of inertiaIx
1,02010⁶ mm⁴
Elastic section modulusSx
4,20010³ mm³
Plastic section modulusZx
4,75010³ mm³
Radius of gyrationrx
204mm

Weak axis y–y

Moment of inertiaIy
11610⁶ mm⁴
Elastic section modulusSy
81810³ mm³
Plastic section modulusZy
1,26010³ mm³
Radius of gyrationry
68.6mm

Torsion and stability

Torsional constantJ
6,04010³ mm⁴
Warping constantCw
6,10010⁹ mm⁶
Effective radius of gyrationrts
79.5mm

Slenderness ratios

Flange slendernessbf/2tf
4.65
Web slendernessh/tw
23.9

Equivalents in other standards