IR – wide flange (ASTM A6 W)

IR 360x57.8

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 = 172d = 358tf = 13.1tf = 13.1tw = 7.87tw = 7.87
Cross-section, to scaledimensions in mm

Dimensions

Depthd
358mm
Flange widthbf
172mm
Web thicknesstw
7.87mm
Flange thicknesstf
13.1mm
Distance k (design)kdes
23.2mm
Distance k (detailing)kdet
31.8mm
Distance k1k1
20.6mm
Web clear depthT
295mm
Distance between flange centroidsho
345mm

Mass and area

Mass per lengthm
57.8kg/m
Cross-sectional areaA
7,230mm²

Strong axis x–x

Moment of inertiaIx
16010⁶ mm⁴
Elastic section modulusSx
89510³ mm³
Plastic section modulusZx
1,01010³ mm³
Radius of gyrationrx
149mm

Weak axis y–y

Moment of inertiaIy
11.110⁶ mm⁴
Elastic section modulusSy
12910³ mm³
Plastic section modulusZy
19810³ mm³
Radius of gyrationry
39.4mm

Torsion and stability

Torsional constantJ
33210³ mm⁴
Warping constantCw
33010⁹ mm⁶
Effective radius of gyrationrts
46.2mm

Slenderness ratios

Flange slendernessbf/2tf
6.57
Web slendernessh/tw
39.6

Equivalents in other standards