IR – wide flange (ASTM A6 W)

IR 690x170

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 = 257d = 693tf = 23.6tf = 23.6tw = 14.5tw = 14.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
693mm
Flange widthbf
257mm
Web thicknesstw
14.5mm
Flange thicknesstf
23.6mm
Distance k (design)kdes
38.9mm
Distance k (detailing)kdet
54mm
Distance k1k1
38.1mm
Web clear depthT
584mm
Distance between flange centroidsho
671mm

Mass and area

Mass per lengthm
170kg/m
Cross-sectional areaA
21,700mm²

Strong axis x–x

Moment of inertiaIx
1,70010⁶ mm⁴
Elastic section modulusSx
4,90010³ mm³
Plastic section modulusZx
5,62010³ mm³
Radius of gyrationrx
279mm

Weak axis y–y

Moment of inertiaIy
66.210⁶ mm⁴
Elastic section modulusSy
51610³ mm³
Plastic section modulusZy
80810³ mm³
Radius of gyrationry
55.4mm

Torsion and stability

Torsional constantJ
3,05010³ mm⁴
Warping constantCw
7,41010⁹ mm⁶
Effective radius of gyrationrts
67.3mm

Slenderness ratios

Flange slendernessbf/2tf
5.41
Web slendernessh/tw
42.5

Equivalents in other standards