W shapes (wide flange)

W40X294 W1000X438

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 = 12d = 40.4tf = 1.93tf = 1.93tw = 1.06tw = 1.06
Cross-section, to scaledimensions in inches

Dimensions

Depthd
40.4in
Flange widthbf
12in
Web thicknesstw
1.06in
Flange thicknesstf
1.93in
Distance k (design)kdes
3.11in
Distance k (detailing)kdet
3.188in
Distance k1k1
1.75in
Web clear depthT
34in
Distance between flange centroidsho
38.5in

Mass and area

Mass per lengthm
294lb/ft
Cross-sectional areaA
86.2in²

Strong axis x–x

Moment of inertiaIx
21,900in⁴
Elastic section modulusSx
1,080in³
Plastic section modulusZx
1,270in³
Radius of gyrationrx
15.9in

Weak axis y–y

Moment of inertiaIy
562in⁴
Elastic section modulusSy
93.5in³
Plastic section modulusZy
150in³
Radius of gyrationry
2.55in

Torsion and stability

Torsional constantJ
76.6in⁴
Warping constantCw
208,000in⁶
Effective radius of gyrationrts
3.16in

Slenderness ratios

Flange slendernessbf/2tf
3.11
Web slendernessh/tw
32.2

Equivalents in other standards