W shapes (wide flange)

W8X31 W200X46.1

Standard: AISC Shapes Database v16.0Source: AISC (aisc.org) — Shapes Database v16.0 (Excel file)
Values published by AISC, in US customary (original) and SI units.
xybf = 8d = 8tf = 0.435tf = 0.435tw = 0.285tw = 0.285
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Flange widthbf
8in
Web thicknesstw
0.285in
Flange thicknesstf
0.435in
Distance k (design)kdes
0.829in
Distance k (detailing)kdet
1.125in
Distance k1k1
0.75in
Web clear depthT
5.75in
Distance between flange centroidsho
7.57in

Mass and area

Mass per lengthm
31lb/ft
Cross-sectional areaA
9.13in²

Strong axis x–x

Moment of inertiaIx
110in⁴
Elastic section modulusSx
27.5in³
Plastic section modulusZx
30.4in³
Radius of gyrationrx
3.47in

Weak axis y–y

Moment of inertiaIy
37.1in⁴
Elastic section modulusSy
9.27in³
Plastic section modulusZy
14.1in³
Radius of gyrationry
2.02in

Torsion and stability

Torsional constantJ
0.536in⁴
Warping constantCw
530in⁶
Effective radius of gyrationrts
2.26in

Slenderness ratios

Flange slendernessbf/2tf
9.19
Web slendernessh/tw
22.3

Equivalents in other standards