W shapes (wide flange)

W40X397 W1000X591

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 = 16.1d = 41tf = 2.2tf = 2.2tw = 1.22tw = 1.22
Cross-section, to scaledimensions in inches

Dimensions

Depthd
41in
Flange widthbf
16.1in
Web thicknesstw
1.22in
Flange thicknesstf
2.2in
Distance k (design)kdes
3.38in
Distance k (detailing)kdet
3.5in
Distance k1k1
1.813in
Web clear depthT
34in
Distance between flange centroidsho
38.8in

Mass and area

Mass per lengthm
397lb/ft
Cross-sectional areaA
117in²

Strong axis x–x

Moment of inertiaIx
32,000in⁴
Elastic section modulusSx
1,560in³
Plastic section modulusZx
1,800in³
Radius of gyrationrx
16.6in

Weak axis y–y

Moment of inertiaIy
1,540in⁴
Elastic section modulusSy
191in³
Plastic section modulusZy
300in³
Radius of gyrationry
3.64in

Torsion and stability

Torsional constantJ
142in⁴
Warping constantCw
579,000in⁶
Effective radius of gyrationrts
4.38in

Slenderness ratios

Flange slendernessbf/2tf
3.66
Web slendernessh/tw
28

Equivalents in other standards