W shapes (wide flange)

W33X318 W840X473

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 = 16d = 35.2tf = 1.89tf = 1.89tw = 1.04tw = 1.04
Cross-section, to scaledimensions in inches

Dimensions

Depthd
35.2in
Flange widthbf
16in
Web thicknesstw
1.04in
Flange thicknesstf
1.89in
Distance k (design)kdes
2.68in
Distance k (detailing)kdet
3.188in
Distance k1k1
1.75in
Web clear depthT
28.88in
Distance between flange centroidsho
33.3in

Mass and area

Mass per lengthm
318lb/ft
Cross-sectional areaA
93.7in²

Strong axis x–x

Moment of inertiaIx
19,500in⁴
Elastic section modulusSx
1,110in³
Plastic section modulusZx
1,270in³
Radius of gyrationrx
14.5in

Weak axis y–y

Moment of inertiaIy
1,290in⁴
Elastic section modulusSy
161in³
Plastic section modulusZy
250in³
Radius of gyrationry
3.71in

Torsion and stability

Torsional constantJ
84.4in⁴
Warping constantCw
357,000in⁶
Effective radius of gyrationrts
4.4in

Slenderness ratios

Flange slendernessbf/2tf
4.23
Web slendernessh/tw
28.7

Equivalents in other standards