IR – wide flange (ASTM A6 W)

IR 130x28.1

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 = 128d = 131tf = 10.9tf = 10.9tw = 6.86tw = 6.86
Cross-section, to scaledimensions in mm

Dimensions

Depthd
131mm
Flange widthbf
128mm
Web thicknesstw
6.86mm
Flange thicknesstf
10.9mm
Distance k (design)kdes
18.5mm
Distance k (detailing)kdet
20.6mm
Distance k1k1
11.1mm
Web clear depthT
88.9mm
Distance between flange centroidsho
120mm

Mass and area

Mass per lengthm
28.1kg/m
Cross-sectional areaA
3,590mm²

Strong axis x–x

Moment of inertiaIx
10.910⁶ mm⁴
Elastic section modulusSx
16710³ mm³
Plastic section modulusZx
19010³ mm³
Radius of gyrationrx
55.1mm

Weak axis y–y

Moment of inertiaIy
3.810⁶ mm⁴
Elastic section modulusSy
59.510³ mm³
Plastic section modulusZy
90.610³ mm³
Radius of gyrationry
32.5mm

Torsion and stability

Torsional constantJ
13210³ mm⁴
Warping constantCw
13.710⁹ mm⁶
Effective radius of gyrationrts
36.8mm

Slenderness ratios

Flange slendernessbf/2tf
5.85
Web slendernessh/tw
13.7

Equivalents in other standards