W shapes (wide flange)

W21X44 W530X66

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 = 6.5d = 20.7tf = 0.45tf = 0.45tw = 0.35tw = 0.35
Cross-section, to scaledimensions in inches

Dimensions

Depthd
20.7in
Flange widthbf
6.5in
Web thicknesstw
0.35in
Flange thicknesstf
0.45in
Distance k (design)kdes
0.95in
Distance k (detailing)kdet
1.125in
Distance k1k1
0.8125in
Web clear depthT
18.38in
Distance between flange centroidsho
20.3in

Mass and area

Mass per lengthm
44lb/ft
Cross-sectional areaA
13in²

Strong axis x–x

Moment of inertiaIx
843in⁴
Elastic section modulusSx
81.6in³
Plastic section modulusZx
95.4in³
Radius of gyrationrx
8.06in

Weak axis y–y

Moment of inertiaIy
20.7in⁴
Elastic section modulusSy
6.37in³
Plastic section modulusZy
10.2in³
Radius of gyrationry
1.26in

Torsion and stability

Torsional constantJ
0.77in⁴
Warping constantCw
2,110in⁶
Effective radius of gyrationrts
1.6in

Slenderness ratios

Flange slendernessbf/2tf
7.22
Web slendernessh/tw
53.6

Equivalents in other standards