IR – wide flange (ASTM A6 W)

IR 310x143

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 = 310d = 323tf = 22.9tf = 22.9tw = 14tw = 14
Cross-section, to scaledimensions in mm

Dimensions

Depthd
323mm
Flange widthbf
310mm
Web thicknesstw
14mm
Flange thicknesstf
22.9mm
Distance k (design)kdes
38.1mm
Distance k (detailing)kdet
46mm
Distance k1k1
28.6mm
Web clear depthT
232mm
Distance between flange centroidsho
300mm

Mass and area

Mass per lengthm
143kg/m
Cross-sectional areaA
18,200mm²

Strong axis x–x

Moment of inertiaIx
34710⁶ mm⁴
Elastic section modulusSx
2,15010³ mm³
Plastic section modulusZx
2,41010³ mm³
Radius of gyrationrx
138mm

Weak axis y–y

Moment of inertiaIy
11210⁶ mm⁴
Elastic section modulusSy
72810³ mm³
Plastic section modulusZy
1,11010³ mm³
Radius of gyrationry
78.5mm

Torsion and stability

Torsional constantJ
2,85010³ mm⁴
Warping constantCw
2,53010⁹ mm⁶
Effective radius of gyrationrts
88.6mm

Slenderness ratios

Flange slendernessbf/2tf
6.76
Web slendernessh/tw
17.7

Equivalents in other standards