W shapes (wide flange)

W12X305 W310X454

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 = 13.2d = 16.3tf = 2.71tf = 2.71tw = 1.63tw = 1.63
Cross-section, to scaledimensions in inches

Dimensions

Depthd
16.3in
Flange widthbf
13.2in
Web thicknesstw
1.63in
Flange thicknesstf
2.71in
Distance k (design)kdes
3.3in
Distance k (detailing)kdet
3.625in
Distance k1k1
1.625in
Web clear depthT
9.125in
Distance between flange centroidsho
13.6in

Mass and area

Mass per lengthm
305lb/ft
Cross-sectional areaA
89.5in²

Strong axis x–x

Moment of inertiaIx
3,550in⁴
Elastic section modulusSx
435in³
Plastic section modulusZx
537in³
Radius of gyrationrx
6.29in

Weak axis y–y

Moment of inertiaIy
1,050in⁴
Elastic section modulusSy
159in³
Plastic section modulusZy
244in³
Radius of gyrationry
3.42in

Torsion and stability

Torsional constantJ
185in⁴
Warping constantCw
48,600in⁶
Effective radius of gyrationrts
4.05in

Slenderness ratios

Flange slendernessbf/2tf
2.45
Web slendernessh/tw
5.98

Equivalents in other standards