W shapes (wide flange)

W40X249 W1000X371

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 = 15.8d = 39.4tf = 1.42tf = 1.42tw = 0.75tw = 0.75
Cross-section, to scaledimensions in inches

Dimensions

Depthd
39.4in
Flange widthbf
15.8in
Web thicknesstw
0.75in
Flange thicknesstf
1.42in
Distance k (design)kdes
2.6in
Distance k (detailing)kdet
2.688in
Distance k1k1
1.563in
Web clear depthT
34in
Distance between flange centroidsho
38in

Mass and area

Mass per lengthm
249lb/ft
Cross-sectional areaA
73.5in²

Strong axis x–x

Moment of inertiaIx
19,600in⁴
Elastic section modulusSx
993in³
Plastic section modulusZx
1,120in³
Radius of gyrationrx
16.3in

Weak axis y–y

Moment of inertiaIy
926in⁴
Elastic section modulusSy
118in³
Plastic section modulusZy
182in³
Radius of gyrationry
3.55in

Torsion and stability

Torsional constantJ
38.1in⁴
Warping constantCw
334,000in⁶
Effective radius of gyrationrts
4.21in

Slenderness ratios

Flange slendernessbf/2tf
5.55
Web slendernessh/tw
45.6

Equivalents in other standards