IR – wide flange (ASTM A6 W)

IR 690x384

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 = 363d = 737tf = 45tf = 45tw = 24.9tw = 24.9
Cross-section, to scaledimensions in mm

Dimensions

Depthd
737mm
Flange widthbf
363mm
Web thicknesstw
24.9mm
Flange thicknesstf
45mm
Distance k (design)kdes
65mm
Distance k (detailing)kdet
76.2mm
Distance k1k1
42.9mm
Web clear depthT
584mm
Distance between flange centroidsho
691mm

Mass and area

Mass per lengthm
384kg/m
Cross-sectional areaA
49,100mm²

Strong axis x–x

Moment of inertiaIx
4,50010⁶ mm⁴
Elastic section modulusSx
12,20010³ mm³
Plastic section modulusZx
14,00010³ mm³
Radius of gyrationrx
302mm

Weak axis y–y

Moment of inertiaIy
35810⁶ mm⁴
Elastic section modulusSy
1,97010³ mm³
Plastic section modulusZy
3,06010³ mm³
Radius of gyrationry
85.3mm

Torsion and stability

Torsional constantJ
25,60010³ mm⁴
Warping constantCw
42,70010⁹ mm⁶
Effective radius of gyrationrts
101mm

Slenderness ratios

Flange slendernessbf/2tf
4.03
Web slendernessh/tw
24.4

Equivalents in other standards