W shapes (wide flange)

W18X55 W460X82

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 = 7.53d = 18.1tf = 0.63tf = 0.63tw = 0.39tw = 0.39
Cross-section, to scaledimensions in inches

Dimensions

Depthd
18.1in
Flange widthbf
7.53in
Web thicknesstw
0.39in
Flange thicknesstf
0.63in
Distance k (design)kdes
1.03in
Distance k (detailing)kdet
1.313in
Distance k1k1
0.8125in
Web clear depthT
15.5in
Distance between flange centroidsho
17.5in

Mass and area

Mass per lengthm
55lb/ft
Cross-sectional areaA
16.2in²

Strong axis x–x

Moment of inertiaIx
890in⁴
Elastic section modulusSx
98.3in³
Plastic section modulusZx
112in³
Radius of gyrationrx
7.41in

Weak axis y–y

Moment of inertiaIy
44.9in⁴
Elastic section modulusSy
11.9in³
Plastic section modulusZy
18.5in³
Radius of gyrationry
1.67in

Torsion and stability

Torsional constantJ
1.66in⁴
Warping constantCw
3,430in⁶
Effective radius of gyrationrts
2in

Slenderness ratios

Flange slendernessbf/2tf
5.98
Web slendernessh/tw
41.1

Equivalents in other standards