W shapes (wide flange)

W18X50 W460X74

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 = 7.5d = 18tf = 0.57tf = 0.57tw = 0.355tw = 0.355
Cross-section, to scaledimensions in inches

Dimensions

Depthd
18in
Flange widthbf
7.5in
Web thicknesstw
0.355in
Flange thicknesstf
0.57in
Distance k (design)kdes
0.972in
Distance k (detailing)kdet
1.25in
Distance k1k1
0.8125in
Web clear depthT
15.5in
Distance between flange centroidsho
17.4in

Mass and area

Mass per lengthm
50lb/ft
Cross-sectional areaA
14.7in²

Strong axis x–x

Moment of inertiaIx
800in⁴
Elastic section modulusSx
88.9in³
Plastic section modulusZx
101in³
Radius of gyrationrx
7.38in

Weak axis y–y

Moment of inertiaIy
40.1in⁴
Elastic section modulusSy
10.7in³
Plastic section modulusZy
16.6in³
Radius of gyrationry
1.65in

Torsion and stability

Torsional constantJ
1.24in⁴
Warping constantCw
3,040in⁶
Effective radius of gyrationrts
1.98in

Slenderness ratios

Flange slendernessbf/2tf
6.57
Web slendernessh/tw
45.2

Equivalents in other standards