W shapes (wide flange)

W12X45 W310X67

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 = 8.05d = 12.1tf = 0.575tf = 0.575tw = 0.335tw = 0.335
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12.1in
Flange widthbf
8.05in
Web thicknesstw
0.335in
Flange thicknesstf
0.575in
Distance k (design)kdes
1.08in
Distance k (detailing)kdet
1.375in
Distance k1k1
0.9375in
Web clear depthT
9.25in
Distance between flange centroidsho
11.5in

Mass and area

Mass per lengthm
45lb/ft
Cross-sectional areaA
13.1in²

Strong axis x–x

Moment of inertiaIx
348in⁴
Elastic section modulusSx
57.7in³
Plastic section modulusZx
64.2in³
Radius of gyrationrx
5.15in

Weak axis y–y

Moment of inertiaIy
50in⁴
Elastic section modulusSy
12.4in³
Plastic section modulusZy
19in³
Radius of gyrationry
1.95in

Torsion and stability

Torsional constantJ
1.26in⁴
Warping constantCw
1,650in⁶
Effective radius of gyrationrts
2.23in

Slenderness ratios

Flange slendernessbf/2tf
7
Web slendernessh/tw
29.6

Equivalents in other standards