W shapes (wide flange)

W12X40 W310X60

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 = 8.01d = 11.9tf = 0.515tf = 0.515tw = 0.295tw = 0.295
Cross-section, to scaledimensions in inches

Dimensions

Depthd
11.9in
Flange widthbf
8.01in
Web thicknesstw
0.295in
Flange thicknesstf
0.515in
Distance k (design)kdes
1.02in
Distance k (detailing)kdet
1.375in
Distance k1k1
0.875in
Web clear depthT
9.25in
Distance between flange centroidsho
11.4in

Mass and area

Mass per lengthm
40lb/ft
Cross-sectional areaA
11.7in²

Strong axis x–x

Moment of inertiaIx
307in⁴
Elastic section modulusSx
51.5in³
Plastic section modulusZx
57in³
Radius of gyrationrx
5.13in

Weak axis y–y

Moment of inertiaIy
44.1in⁴
Elastic section modulusSy
11in³
Plastic section modulusZy
16.8in³
Radius of gyrationry
1.94in

Torsion and stability

Torsional constantJ
0.906in⁴
Warping constantCw
1,440in⁶
Effective radius of gyrationrts
2.21in

Slenderness ratios

Flange slendernessbf/2tf
7.77
Web slendernessh/tw
33.6

Equivalents in other standards