W shapes (wide flange)

W40X431 W1000X642

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 = 16.2d = 41.3tf = 2.36tf = 2.36tw = 1.34tw = 1.34
Cross-section, to scaledimensions in inches

Dimensions

Depthd
41.3in
Flange widthbf
16.2in
Web thicknesstw
1.34in
Flange thicknesstf
2.36in
Distance k (design)kdes
3.54in
Distance k (detailing)kdet
3.625in
Distance k1k1
1.875in
Web clear depthT
34in
Distance between flange centroidsho
38.9in

Mass and area

Mass per lengthm
431lb/ft
Cross-sectional areaA
127in²

Strong axis x–x

Moment of inertiaIx
34,800in⁴
Elastic section modulusSx
1,690in³
Plastic section modulusZx
1,960in³
Radius of gyrationrx
16.6in

Weak axis y–y

Moment of inertiaIy
1,690in⁴
Elastic section modulusSy
208in³
Plastic section modulusZy
328in³
Radius of gyrationry
3.65in

Torsion and stability

Torsional constantJ
177in⁴
Warping constantCw
638,000in⁶
Effective radius of gyrationrts
4.41in

Slenderness ratios

Flange slendernessbf/2tf
3.44
Web slendernessh/tw
25.5

Equivalents in other standards