W shapes (wide flange)

W12X230 W310X342

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 = 12.9d = 15.1tf = 2.07tf = 2.07tw = 1.29tw = 1.29
Cross-section, to scaledimensions in inches

Dimensions

Depthd
15.1in
Flange widthbf
12.9in
Web thicknesstw
1.29in
Flange thicknesstf
2.07in
Distance k (design)kdes
2.67in
Distance k (detailing)kdet
2.938in
Distance k1k1
1.5in
Web clear depthT
9.125in
Distance between flange centroidsho
13in

Mass and area

Mass per lengthm
230lb/ft
Cross-sectional areaA
67.7in²

Strong axis x–x

Moment of inertiaIx
2,420in⁴
Elastic section modulusSx
321in³
Plastic section modulusZx
386in³
Radius of gyrationrx
5.97in

Weak axis y–y

Moment of inertiaIy
742in⁴
Elastic section modulusSy
115in³
Plastic section modulusZy
177in³
Radius of gyrationry
3.31in

Torsion and stability

Torsional constantJ
83.8in⁴
Warping constantCw
31,200in⁶
Effective radius of gyrationrts
3.87in

Slenderness ratios

Flange slendernessbf/2tf
3.11
Web slendernessh/tw
7.56

Equivalents in other standards