W shapes (wide flange)

W12X106 W310X158

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 = 12.2d = 12.9tf = 0.99tf = 0.99tw = 0.61tw = 0.61
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12.9in
Flange widthbf
12.2in
Web thicknesstw
0.61in
Flange thicknesstf
0.99in
Distance k (design)kdes
1.59in
Distance k (detailing)kdet
1.875in
Distance k1k1
1.125in
Web clear depthT
9.125in
Distance between flange centroidsho
11.9in

Mass and area

Mass per lengthm
106lb/ft
Cross-sectional areaA
31.2in²

Strong axis x–x

Moment of inertiaIx
933in⁴
Elastic section modulusSx
145in³
Plastic section modulusZx
164in³
Radius of gyrationrx
5.47in

Weak axis y–y

Moment of inertiaIy
301in⁴
Elastic section modulusSy
49.3in³
Plastic section modulusZy
75.1in³
Radius of gyrationry
3.11in

Torsion and stability

Torsional constantJ
9.13in⁴
Warping constantCw
10,700in⁶
Effective radius of gyrationrts
3.52in

Slenderness ratios

Flange slendernessbf/2tf
6.17
Web slendernessh/tw
15.9

Equivalents in other standards