W shapes (wide flange)

W18X258 W460X384

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 = 11.8d = 21.5tf = 2.3tf = 2.3tw = 1.28tw = 1.28
Cross-section, to scaledimensions in inches

Dimensions

Depthd
21.5in
Flange widthbf
11.8in
Web thicknesstw
1.28in
Flange thicknesstf
2.3in
Distance k (design)kdes
2.7in
Distance k (detailing)kdet
3.188in
Distance k1k1
1.438in
Web clear depthT
15.13in
Distance between flange centroidsho
19.2in

Mass and area

Mass per lengthm
258lb/ft
Cross-sectional areaA
76in²

Strong axis x–x

Moment of inertiaIx
5,510in⁴
Elastic section modulusSx
514in³
Plastic section modulusZx
611in³
Radius of gyrationrx
8.53in

Weak axis y–y

Moment of inertiaIy
628in⁴
Elastic section modulusSy
107in³
Plastic section modulusZy
166in³
Radius of gyrationry
2.88in

Torsion and stability

Torsional constantJ
103in⁴
Warping constantCw
57,600in⁶
Effective radius of gyrationrts
3.42in

Slenderness ratios

Flange slendernessbf/2tf
2.56
Web slendernessh/tw
12.5

Equivalents in other standards