W shapes (wide flange)

W12X16 W310X23.8

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 = 3.99d = 12tf = 0.265tf = 0.265tw = 0.22tw = 0.22
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Flange widthbf
3.99in
Web thicknesstw
0.22in
Flange thicknesstf
0.265in
Distance k (design)kdes
0.565in
Distance k (detailing)kdet
0.8125in
Distance k1k1
0.5625in
Web clear depthT
10.38in
Distance between flange centroidsho
11.7in

Mass and area

Mass per lengthm
16lb/ft
Cross-sectional areaA
4.71in²

Strong axis x–x

Moment of inertiaIx
103in⁴
Elastic section modulusSx
17.1in³
Plastic section modulusZx
20.1in³
Radius of gyrationrx
4.67in

Weak axis y–y

Moment of inertiaIy
2.82in⁴
Elastic section modulusSy
1.41in³
Plastic section modulusZy
2.26in³
Radius of gyrationry
0.773in

Torsion and stability

Torsional constantJ
0.103in⁴
Warping constantCw
96.9in⁶
Effective radius of gyrationrts
0.983in

Slenderness ratios

Flange slendernessbf/2tf
7.53
Web slendernessh/tw
49.4

Equivalents in other standards