W shapes (wide flange)

W12X30 W310X44.5

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 = 6.52d = 12.3tf = 0.44tf = 0.44tw = 0.26tw = 0.26
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12.3in
Flange widthbf
6.52in
Web thicknesstw
0.26in
Flange thicknesstf
0.44in
Distance k (design)kdes
0.74in
Distance k (detailing)kdet
1.125in
Distance k1k1
0.75in
Web clear depthT
10.13in
Distance between flange centroidsho
11.9in

Mass and area

Mass per lengthm
30lb/ft
Cross-sectional areaA
8.79in²

Strong axis x–x

Moment of inertiaIx
238in⁴
Elastic section modulusSx
38.6in³
Plastic section modulusZx
43.1in³
Radius of gyrationrx
5.21in

Weak axis y–y

Moment of inertiaIy
20.3in⁴
Elastic section modulusSy
6.24in³
Plastic section modulusZy
9.56in³
Radius of gyrationry
1.52in

Torsion and stability

Torsional constantJ
0.457in⁴
Warping constantCw
720in⁶
Effective radius of gyrationrts
1.77in

Slenderness ratios

Flange slendernessbf/2tf
7.41
Web slendernessh/tw
41.8

Equivalents in other standards