W shapes (wide flange)

W21X48 W530X72

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 = 8.14d = 20.6tf = 0.43tf = 0.43tw = 0.35tw = 0.35
Cross-section, to scaledimensions in inches

Dimensions

Depthd
20.6in
Flange widthbf
8.14in
Web thicknesstw
0.35in
Flange thicknesstf
0.43in
Distance k (design)kdes
0.93in
Distance k (detailing)kdet
1.125in
Distance k1k1
0.8125in
Web clear depthT
18.38in
Distance between flange centroidsho
20.2in

Mass and area

Mass per lengthm
48lb/ft
Cross-sectional areaA
14.1in²

Strong axis x–x

Moment of inertiaIx
959in⁴
Elastic section modulusSx
93in³
Plastic section modulusZx
107in³
Radius of gyrationrx
8.24in

Weak axis y–y

Moment of inertiaIy
38.7in⁴
Elastic section modulusSy
9.52in³
Plastic section modulusZy
14.9in³
Radius of gyrationry
1.66in

Torsion and stability

Torsional constantJ
0.803in⁴
Warping constantCw
3,950in⁶
Effective radius of gyrationrts
2.05in

Slenderness ratios

Flange slendernessbf/2tf
9.47
Web slendernessh/tw
53.6

Equivalents in other standards