W shapes (wide flange)

W12X19 W310X28.3

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 = 4.01d = 12.2tf = 0.35tf = 0.35tw = 0.235tw = 0.235
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12.2in
Flange widthbf
4.01in
Web thicknesstw
0.235in
Flange thicknesstf
0.35in
Distance k (design)kdes
0.65in
Distance k (detailing)kdet
0.875in
Distance k1k1
0.5625in
Web clear depthT
10.38in
Distance between flange centroidsho
11.9in

Mass and area

Mass per lengthm
19lb/ft
Cross-sectional areaA
5.57in²

Strong axis x–x

Moment of inertiaIx
130in⁴
Elastic section modulusSx
21.3in³
Plastic section modulusZx
24.7in³
Radius of gyrationrx
4.82in

Weak axis y–y

Moment of inertiaIy
3.76in⁴
Elastic section modulusSy
1.88in³
Plastic section modulusZy
2.98in³
Radius of gyrationry
0.822in

Torsion and stability

Torsional constantJ
0.18in⁴
Warping constantCw
131in⁶
Effective radius of gyrationrts
1.02in

Slenderness ratios

Flange slendernessbf/2tf
5.72
Web slendernessh/tw
46.2

Equivalents in other standards