W shapes (wide flange)

W40X277 W1000X412

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 = 39.7tf = 1.58tf = 1.58tw = 0.83tw = 0.83
Cross-section, to scaledimensions in inches

Dimensions

Depthd
39.7in
Flange widthbf
15.8in
Web thicknesstw
0.83in
Flange thicknesstf
1.58in
Distance k (design)kdes
2.76in
Distance k (detailing)kdet
2.875in
Distance k1k1
1.625in
Web clear depthT
34in
Distance between flange centroidsho
38.1in

Mass and area

Mass per lengthm
277lb/ft
Cross-sectional areaA
81.5in²

Strong axis x–x

Moment of inertiaIx
21,900in⁴
Elastic section modulusSx
1,100in³
Plastic section modulusZx
1,250in³
Radius of gyrationrx
16.4in

Weak axis y–y

Moment of inertiaIy
1,040in⁴
Elastic section modulusSy
132in³
Plastic section modulusZy
204in³
Radius of gyrationry
3.58in

Torsion and stability

Torsional constantJ
51.5in⁴
Warping constantCw
379,000in⁶
Effective radius of gyrationrts
4.25in

Slenderness ratios

Flange slendernessbf/2tf
5.03
Web slendernessh/tw
41.2

Equivalents in other standards