W shapes (wide flange)

W12X336 W310X500

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 = 13.4d = 16.8tf = 2.96tf = 2.96tw = 1.78tw = 1.78
Cross-section, to scaledimensions in inches

Dimensions

Depthd
16.8in
Flange widthbf
13.4in
Web thicknesstw
1.78in
Flange thicknesstf
2.96in
Distance k (design)kdes
3.55in
Distance k (detailing)kdet
3.875in
Distance k1k1
1.688in
Web clear depthT
9.125in
Distance between flange centroidsho
13.8in

Mass and area

Mass per lengthm
336lb/ft
Cross-sectional areaA
98.9in²

Strong axis x–x

Moment of inertiaIx
4,060in⁴
Elastic section modulusSx
483in³
Plastic section modulusZx
603in³
Radius of gyrationrx
6.41in

Weak axis y–y

Moment of inertiaIy
1,190in⁴
Elastic section modulusSy
177in³
Plastic section modulusZy
274in³
Radius of gyrationry
3.47in

Torsion and stability

Torsional constantJ
243in⁴
Warping constantCw
57,000in⁶
Effective radius of gyrationrts
4.13in

Slenderness ratios

Flange slendernessbf/2tf
2.26
Web slendernessh/tw
5.47

Equivalents in other standards