W shapes (wide flange)

W21X57 W530X85

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 = 6.56d = 21.1tf = 0.65tf = 0.65tw = 0.405tw = 0.405
Cross-section, to scaledimensions in inches

Dimensions

Depthd
21.1in
Flange widthbf
6.56in
Web thicknesstw
0.405in
Flange thicknesstf
0.65in
Distance k (design)kdes
1.15in
Distance k (detailing)kdet
1.313in
Distance k1k1
0.8125in
Web clear depthT
18.38in
Distance between flange centroidsho
20.5in

Mass and area

Mass per lengthm
57lb/ft
Cross-sectional areaA
16.7in²

Strong axis x–x

Moment of inertiaIx
1,170in⁴
Elastic section modulusSx
111in³
Plastic section modulusZx
129in³
Radius of gyrationrx
8.36in

Weak axis y–y

Moment of inertiaIy
30.6in⁴
Elastic section modulusSy
9.35in³
Plastic section modulusZy
14.8in³
Radius of gyrationry
1.35in

Torsion and stability

Torsional constantJ
1.77in⁴
Warping constantCw
3,190in⁶
Effective radius of gyrationrts
1.68in

Slenderness ratios

Flange slendernessbf/2tf
5.04
Web slendernessh/tw
46.3

Equivalents in other standards